New Arrivals

Mathematics

Exercise 1.1 (Math 10)

exercise

Question 1.   Write the following quadratic equations in the standard form and point out pure quadratic equations. (i).          (x + 7)(x − 3) = −7 Solution: The given quadratic equation is         (x + 7)(x − 3) = −7          (i) Multiplying the expressions (x + 7) and (x − 3) in equation (i) with each other, we have       ...

Read More »

Matrices and Determinants

Matrices

The matrices and determinants are used in the field of Mathematics, Physics, Statistics, Electronics and other branches of science. The matrices have played a very important role in this age of computer science. The idea of matrices was given by Arthur Cayley, an English mathematician of nineteenth century, who first developed, “Theory of Matrices” in 1858. Matrix A rectangular array ...

Read More »

Quadratic Equations

Quadratic Equation

An equation of 2nd degree is called quadratic equation. In more detail, the quadratic equation is an equation, which contains the square of the unknown (variable) quantity, but no higher power. General or standard form of a quadratic equation: It is a 2nd degree equation in one variable x of the form as below, where a ≠ 0 and a, b, ...

Read More »

Subset

Subset

Set A is said to be a subset of a set B, if and only if each element of A is an element of B. It is denoted by A ⊆ B Super Set If a set A is a subset of set B then set B is a super set of set A. It is denoted by B ⊇ ...

Read More »

Sets

Math

A set is a collection of well defined distinct objects or symbols. Well defined objects mean that the objects possess a property that enables one to determine whether a given object is in the collection or not. For example, a set cannot consist of elements like moral values, concepts, evils or virtues. Element of a set Each object in the ...

Read More »