Online math

Free online math help:

Multiplication, Addition, and Subtraction

For addition and subtraction, use the standard + and - symbols respectively. For multiplication, use the * symbol. A * when multiplying a number by a variable symbol is not necessary . For instance: 2 * x can also be entered as 2x. same way * (x + 5) can also be entered as 2(x + 5); 2x * (5) can be entered as 2x(5). The * is also optional when multiplying with parentheses, example: (x + 1)(x - 1)

Introduction to square root

Introduction to Square root:

Square root is basic operation in mathematics. We use square root operation in every day life. The most mathematics operation square root symbol. We used the symbol for square root is √ . The square root of x will be used in math like . It is called as radical.

Defination of Parallel

parallel definition:

Two lines that does not intersect in a plane and it will meet together is said to be parallel lines. Here the line those two lines often used in is parallel if they do not intersect, though this definition applies only in the 2-dimensional plane. An equal distance of a parallel line is same as the opposite line is an another way for geometry.

Symbol: The parallel symbol represented by ||.
For example, AB || CD denotes that line AB is parallel to line CD.

online algebra 2 problems

Let us learn about algebra 2 problems

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online pre algebra problems cover equation equations, graphing, multiplex lottery, functions, sequences and serial, and exponents and logarithms. Difficulty solving skills are emphasized throughout, and time is devoted to sophisticated topics equivalent telescoping sums and piecewise functions.

Students are primed for this class if they feature perfect row roots and fragmental exponents, status of dealings, linear equations and inequalities, ratio, and proportion. We suggest that students feature participate with factoring quadratics prior to taking this direction.

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In our next blog we shall learn about algebra 1 answers I hope the above explanation was useful.Keep reading and leave your comments.

statistics tutor

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The tutoring is a bright technique for the student to assemble the information from the online. The statistics tutor is very helpful to the students. The statistics tutor provides the information in mean, median, mode, range with some example and practice problems. Now we will discuss the 1st grade statistics tutor with examples some of the example problems of 1St grade statistics.

free statistics tutoring is a new way for a student to receive help, either scheduled or on demand. Sessions are done through a proprietary application where a student and tutor can communicate. Common tools include chat, whiteboard, web conferencing, teleconferencing and other specialized applets which make it easier to convey information back and forth. For example, there may be a specialized applet designed specifically for mathematics which allow the use of symbols.

Triangle Problem and Solution

Question: Prove that the points A(-5, 4), B(-1, -2) and C(5, 2) are the vertices of an isosceles right angled triangle.

Given that ABC is a triangle.



If ABC is an isosceles D le, then AB = BC.













Hence ABC is an isosceles triangle.

If it is a right angled triangle then,

AC² = AB² + BC²







AC² = 104 units





= 2 x 52

= 104 units

Hence AC² = AB² + BC² and AB = BC

is an isosceles right angled triangle.

In the above Cartesian system problem solving, we can see while calculating the Pythagoras theorem is used.

Defination of Matrix

Definition of a Matrix:

A rectangular array of entries is called a Matrix. The entries may be real, complex or functions.

The entries are also called as the elements of the matrix.

The rectangular array of entries are enclosed in an ordinary bracket or in square bracket. Matrices are denoted by capital letters.

Example:

(i)

Note that the entries in a given matrix need not be distinct.

(ii)

The entries in this matrix are function of x.

A matrix having m rows and n columns is called as matrix of order mxn. Such a matrix has mn elements.

In general, an mxn matrix is in the form

Where a_ij represents the element in i^th column.

The above matrix may be denoted as A = [a_ij]_mxn.