Wednesday, 30 May 2012

Subtracting Integers

In the previous section we have discussed about adding scientific notation calculator and In today's session we are going to discuss about Subtracting Integers.
We know that the subtraction operation is to be performed when something is to be reduced from the given unit. Now we will learn how to perform the operation of subtraction. Here we will learn it by the help of the following expression:
Subtract -5 from -7
 In this expression, we observe that both the terms are negative. So the given expression can be mathematically expressed as follows:
 = -7 – ( -5 ), so we come to the conclusion that the sign of the second term will be changed when we perform subtraction. So we get “
 = -7 + 5
= -2, here the sign of the second term becomes positive and thus we get the result by performing the addition operation between the two terms as -2.  When we need to learn about Quotient Rule, we must go through the cbse textbooks for class 11 and understand the basic concepts for the same. Now we will find that we perform the subtraction operation between the terms such the subtrahend is a negative number and the minuend is a positive number, then we proceed as follows:
 Subtract -4 from + 6, so this expression will be written as follows:
 = 6 – ( -4 ), so we write that the  sign of the negative number -4 will change to  + 4 and the expression will be written as follows :
= 6 + 4 = + 10
Thus we find the two terms will be added up and we get the result as  + 10, which is the difference of the  two numbers  where the  subtrahend is a negative number and the minuend is a positive number.

Tuesday, 29 May 2012

adding scientific notation calculator

In simple terms a scientific notation is a way of writing numbers which are too large or too small and can be written in standard decimal notation. Scientific notation has the number of useful properties which are more commonly used in calculators and also by the mathematicians, engineers and scientists. Exponential notation is the other name of scientific notation. In scientific notation all the numbers are written in the form of
  a * 10b  ; where the b in the exponential form is the integer, the coefficient a is any real number in other words the number 10 is also known as base. Power of ten notation is used to save our efforts. If the decimal moved to the left this means base has the positive exponent. And if it has negative exponent it will move to the right.
There are few steps can be followed to add and subtract any two numbers in the adding scientific notation calculator.
Step 1 is to adjust the power of 10 in the 2 number so that they can form the same index.
Step 2 is to add or subtract the number
step 3 is to give the answer in the scientific notation.
Now we will understand this with the help of the following instance.
Evaluate 3 * 10+ 6.3 * 104 and give your answer in the scientific notation.
Solution : 3 * 10+ 6.3 * 104

= 0.3 * 10+ 6.3 * 10( convert them into the same indices)

= (0.3 + 6.3 ) * 10(add the numbers)

= 6.6 * 10( answer in scientific notation.)

Few of the Algebra 2 problems are difficult to solve, algebra 2 tutor is available online to help you out. Work out TamilNadu board logic sample papers to score high in your examinations and In the next session we will discuss about subtracting integers worksheet.

Tuesday, 22 May 2012

subtracting integers worksheet

Previously we have discussed about antiderivative of e and In today's session we are going to discuss about subtracting integers worksheet, We know that integers are all natural numbers, their negative numbers & zero. Since we can do mathematical operations of addition, subtraction, multiplication & division, so we can do all these operations on integers as well. We can further improve our skills by working out subtracting integers worksheet.
Let us know how to subtract integers. We know that on a number line 0 is placed in the centre , all positive numbers on the right side of zero in increasing order & all negative numbers on left side of zero in decreasing order. To subtract any two integers, we can use a number line or can do the same by following the rules of signs associated with integers.(Know more about integers in broad manner, here,)
To subtract the given integers, we first consider their signs. If the two integers to be subtracted have positive sign, we subtract the smaller  number from the bigger & put +ve sign before the answer if smaller number is to be subtracted, while a –ve sign is put if the bigger number was to be subtracted. E.g., 3-7= -4 as 7, the bigger number was to be subtracted. But if it was 7-3, the answer would be 4 as the smaller number is to be subtracted.
While subtracting a –ve number, the –ve sign of the number & the minus sigh together become +, so we actually add the two numbers, e.g., 4-(-9)=4+9=13
To subtract a positive number from a negative number, the two numbers are actually added & a –ve sign is put before their sum, e.g.,(-8)-5=-8-5=-13.
Thus, we see that all the rules relating to addition of integers are followed in subtraction also with the only difference that the minus sign of subtraction combines with the sign of the number to be subtracted & for this combination of the sighs, we follow the following pattern:
-ve & +ve become –ve
-ve & -ve become +ve

We could also learn new topics like Binomial distribution and its also an important topic in andhra pradesh education board.
In the next session we will discuss about Properties of Numbers and  if anyone want to know about factor algebra calculator then they can refer to Internet and text books for understanding it more precisely.

Friday, 2 March 2012

Properties of Irrational Numbers

Previously we have discussed about factoring perfect square trinomials worksheet and In today's session we are going to discuss about Rational and irrational numbers which comes under board of andhra pradesh intermediate, They are the different type of number representation in the number system of mathematics. These are the number representations which help in solving the problem related to math. If we define the rational numbers then we can say that rational numbers are those numbers which represent the integer value in the form of numerator and denominator. For example, x / y, here x is numerator and y indicates the denominator which should be greater then 0.
In the same sense we can say that irrational numbers are those numbers which can’t be represented in the form of numerator and denominator format. In the general sense irrational numbers in the number system can be considered as real numbers but they can’t be shown in fractional format. The fundamental properties of irrational number is that they can’t be represented in ratio form.Through this topic we are going to discuss about the Properties of Irrational Numbers. Let's explain the concept to you with the help of some examples.
The famous example of irrational numbers is ∏. Generally this symbol is known as ‘ pi ‘. In the mathematics pi value is approximated as 22 / 7. It means ∏ = 3.141592653589 and so on. In the value of pi , we can see that the value is not accurate or they can’t be represented in standard fractional format. Thus, one of the Properties of Irrational Numbers is that the cannot be represented in fractional form. (Know more about  Irrational Numbers in broad manner, here,)
Another famous example of irrational numbers are √2. In the √2 there actual value is 1.41421356 and so on. As like the another fractional number √2 can’t be represented using ratio property of two numbers and they can’t be represented in any simple faction. That’s why this is irrational number.
Even the number e (symbol of Euler number ) can’t be represented in the ratio form and in simpler fraction from.
In the next session we are going to discuss subtracting integers worksheet 
and Read more maths topics of different grades such as Perfect Square Trinomials in the upcoming sessions here and You can visit our website for getting information about Rate of Change Formula.

 

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Monday, 27 February 2012

Binary Numbers

Previously we have discussed about how to solve limits and In today's session we are going to discuss about Binary numbers that comes under board of ssc education andhra pradesh, It deals with only two numbers 0 and 1.it is also known as base-2 number system. It has a radix of 2. In todays gadgets and computers, the circuits are implemented using binary coding that uses Binary Numbers.The main reason is that it is easy to manipulate the equations with 0 and 1.
We can define Binary Numbers as the ones that contain only two digits: 0's and 1's.
00000011001011011101010111 is a binary number. We can define Binary numbers as a sequence of 0's and 1's. The binary number can be converted into decimal numbers and hexadecimal numbers using the conversion formulas. Any number can be represented in the form of 0 and 1 and can be converted back into its original form .
Counting in binary number starts by taking rightmost digits and moving toward left. Conversion of binary number can be converted to decimal number by multiplying each digit by the corresponding power of 2.
for example,

0 0 1 1 can be converted to decimal number as,

[ 0 0 1 1 ]2 =[ ( 20 * 1 ) + ( 2 1 * 1 ) + ( 22 * 0 ) + ( 23 * 0 ) ]10
= [ 1 + 2 + 0 + 0 ]10
=[3]10

Similary, we can convert any binary number to a decimal number.
Following is the table which shows binary numbers and their corresponding decimal numbers.

Binary number decimal number

0 0
1 1
1 0 2
1 1 3
1 0 0 4
1 0 1 5
1 1 0 6
1 1 1 7
1 0 0 0 8
1 0 0 1 9

Now. Let us do addition in of binary numbers.
There are following rules,
1 + 1 =1 0
1 + 0 = 1
0 + 1 = 1
0 + 0 = 0

let us add two binary numbers,

1 0 1 0 + 1 1 0 0

1 0 1 0
+1 1 0 0
---------------------------------------------
1 0 1 1 0

we can implement a binary adder using this rule.
In the next session we are going to discuss Properties of Irrational Number and Read more maths topics of different grades such as Binomial Theorem
in the upcoming sessions here and You can visit our website for getting information about Normal Distribution Examples.

Thursday, 23 February 2012

Properties of Numbers

Hello students, Previously we have discussed about fourier transform of sine and Today we are going to discuss properties of numbers which is an important part of ap secondary education board. The numbers systems are a part of mathematics. Number systems have some basic properties like: commutative, distributive, and associative.
Associative property: associative word means to associate or to group; this property is a rule that refers to grouping. For addition, the rule is x + (y + z) = (x + y) + z. This property can be understood with the help of example: 4+ (5+7) = (4+5) + 7.
For multiplication, the operation x(yz)=(xy)z. We will understand this operation with the help of example 3(4*5)=(3*4)5.
Commutative property: commutative word means to move around or to commute; the commutative property is one of the parts that stated that you can rearrange digits in an expression. For addition, the commutative property rule is x + y = y + x; this means 6 + 4 = 4 + 6.
For multiplication, the commutative property rule is xy = yx this means 4*5 = 5*4. For example, we use the commutative property to restate 4 * 6 * a: 6*4*a, 6*a*4, a*6*4, 4*a*6, and 4*6*a
Why is it true that 4(6a) = (6a)(4)?
This is true by commutative property. (We can see that 4(6a) = (6a)(4) = 24a)
Distributive property: this property is easy to remember, this property can be stated as: x(y + z) = xy + xz. This means 3(4 + 5) = 3*4 + 3*5.
Why is it truethat3(a + b) = 3a + 3b?
This is true by the distributive property. Distributive Property operations can be performed in the real numbers.(Know more about Properties of Numbers in broad manner, here,)
The example of the number system properties: 4x - 5y + 6z (this is original statement).
4x - 5y + 6x: this is commutative property, (4x+6x)-5y: this is the associative property, x(4+6)-5y: this is distributive property.
In the next topic we are going to discuss about Binary Numbers
and Read more maths topics of different grades such as Binomial Experiments in the upcoming sessions here and and You can visit our website for getting information about Negative Correlation Coefficient.

Wednesday, 22 February 2012

Properties of Complex Numbers

Previously we have discussed about system of equations worksheet and Today we are going to discuss about the Complex numbers and their properties which comes under andhra pradesh education board. First of all we should know about the complex numbers. A complex number is a number which has a form of x + iy, here x and y are the real numbers and i is known as the imaginary part or unit of the complex number. The value of i is root of -1 or i>2= -1. In the form of the complex number the term x is the real part and iy is the imaginary part of the number. The complex number is known as purely imaginary number if its real part or x is equals to 0.(Know more about Complex Numbers in broad manner, here,)
Now here I will tell you about some of the Properties of Complex Numbers:
1.    Powers of   i = root of -1, i>2 = -1, i>3 = -1, i>4 = 1
2.     Equality of two complex numbers: Two complex numbers are said to be equal if their real and imaginary parts are equal say two complex numbers are
 x + iy = a + ib if x = a and y = b.
3.    Addition property: When we add two complex numbers then we have to add the real parts to one another and imaginary parts to one another of the numbers. Like if we have two complex numbers say a + ib and x + iy then their addition will be (a + x) + (b + y)i.
The subtraction is just opposite of the addition property of the complex numbers.
4.    Multiplication: To multiply two complex numbers simply use the FOIL method.
(a + bi)*(x + yi)= (ax - by) + (ay + bx)i.
5.     Complex Conjugation: The complex number x + yi can be conjugate and it will give value x –yi. One thing is to remember is that the product of a complex number and its conjugate is always a real value. That is (x + iy) (x - iy)= x2+ y2.
So these are the Complex Number Properties. In the next topic we are going to discuss Properties of Numbers and if anyone want to know about Solving Binomial Expansion then they can refer to Internet and text books for understanding it more precisely and if you need help with math you can visit our website.