Whole numbers

I want to know if any body remembers the Whole numbers definition which was earlier explained to you. We also discussed on complex number earlier, look at that post.

Definition of a Whole numbers:

The natural numbers along with zero form the group of whole numbers.

The above definition will be explained you in details in my next post. But you will be able to answer if any body ask you what is a whole number, won't you be able to do so...

Small piece of advice

Friends looking at many children around me i decided to post this for all of you. It is a small piece of advice.

Guys education is very necessary, it makes you live your life comfortably through out your life. A few things that you will have to remember while you are studying either school or college or university level.

There is no harm in requesting for the past papers from your seniors in school or college. By practicing this you will know the subject more better. Try to understand the subject or the concept well. Look at the importance of the subject. Work on many online sites which will help you get help like science help, English or Math help and so on...

This practice will help you gain more and more knowledge on the subject. If you are working on science topics look at the theory test questions they will help you out. Once you work on all these methods which is adviced i am sure you will always smile.....

Algebra

Friends, we use numbers or numerals like 1234... in arithmetic and similarly we use alphabets along with numbers in algebra terms. I have solved some simple algebra problems earlier just look into those problems. Below you can see an example where i have used algebra terms.

Example No1:-

Solve the following
x+y= 18
2x-y=9

Solution-----> x=9 and y= 9

The problem has the algebraic term x and y did you notice that? Just concentrate on the method your teachers teach you even the hardest math problem will be an easy one.

Graphing Calculator

Good morning my friends, i am back today with graphing calculator online for free, i just wanted you to know that along with online math help we also have many sites which will help you even in graphing, look for such sites.

Well, you have know the uses of factoring calculator lets look for a problem which will help us solve a problem below and this will give you a clear picture on graphing calculator.

Problem No1:-

Solve the given system of equations by graphing calculator,

y = 5x + 15

y = x + 5

Solution:

Arrange the given equation in standard form,

5x - y = -15 equation 1

x - y = -5 equation 2


5x - y = -15

x - y = -5 (subtracting)

4x = -10

4x = -10

Divide 4 on both sides,

4x/4 = -10/4

x = -2.5

Plug in the x value in equation 1.

4(-2.5) - y = -15

-10 - y = -15

Add 10 on both sides

-10 + 10 - y = -15 + 10

-y = -5

y = 5

The graphing points are (-2.5, 0) and (0, 5). Look at the graph below.



We will work on quadratic formula calculator in our next post. Do you have some topic that you want me to discuss let me know that and i will work on it....

Tangent circle

Folks...this post is the continuous of my previous post. I had explained you what is circle properties which had various properties of a circle. Now lets work on tangent circles and begin our journey towards our destiny....

Tangent Circles:- Circles that intersect each other are called as tangentcircles. Geometry constructions are related to these tangent circles. Lets us solve some problem related to tangent circle radius.

Find the equation of the tangent at (-2, 3) to the circle x² + y ² – 13 = 0.

Soln: (x₁, y₁) = (-2, 3).

The tangent is x (-2) + y (3) – 13 = 0

" style="vertical-align: middle;" src="http://www.tutorvista.com/js/jsMath/wysiwyg_asciimath/mimetex/mimetex.cgi?%5Cdisplaystyle%5CRightarrow"> - 2x + 3y – 13 = 0

" style="vertical-align: middle;" src="http://www.tutorvista.com/js/jsMath/wysiwyg_asciimath/mimetex/mimetex.cgi?%5Cdisplaystyle%5CRightarrow"> 3y = 2x + 13.

There are two types of tangent circles called internal tangent circle and external tangent circle.

Well give me your views on this post. How good was this???

Circumference of the Circles

In geometry circle is a very essential topic and is what we will be discussing today.

Lets discuss the circumference of the circle,

Circumference of the circle:- The distance around the circle is Circumference. The formula to find the Circumference of a circle C is C = 2 × Pi × r. Circumference of a circle is 2 times the value of pi times r. Pi=3.142 which is a constant value.

Below i have a example to find the circumference of a circle equation is also mentioned below.

Example 1:

Find circumference of the circle with radius 6cm?

Solution:

Formula to find circumference of the circle = 2 pi r

Here ,radius =6cm.

Substitute these value into formula we get ,

Circumference of the circle = 2*3.14*6 [pi =3.14 or 22/7]

=37.68cm

Now you are perfect with this topic right, let me know how much you have understood the topic and if any comments let me know that as well.

Complex numbers represented by a Graph

We been working on Complex numbers and the Complex number properties so long, look at the picture beside, it is a complex number which can be represented by a Graph too.

I will discuss on this topic today, Complex numbers can be represented by a graph as shown in the figure.

To understand the concept easily, first take a look at my earlier blog which gives you the details on what is a complex number and you need to take a look at the picture carefully and read the content below.


Complex numbers represented by a Graph:- Complex numbers can be represented on a complex plane. Horizontal axis is used for the real part and the vertical axis is used for the imaginary part. The complex number Z = x + iy may be represented graphically by the point P whose rectangular co-ordinates are (x, y).
Each point in the plane is associated with a complex number.

Check out for more information on this, i am sure you must be enjoying reading this as much as i do while posting it, Friends, this is a good concept in mathematics and i will be able to understand your views only if you comment, feel free to comment....