Substitution method for Solving linear Systems The Substitution method for Solving linear Systems is easy to solve the equations. Substitution method can be applied in below steps. Step 1: First select one equation and solve it for one variable either x = or y =. Step 2: Substitute the solution from step 1 into the other equation. […]
Read More →Solving Quadratic Equations A Quadratic equation is an equation in the form “ax2 + bx + c = 0″, where x is variable, a, b, c, are real numbers, and a ≠ 0. Example- (1) x2 – 4x + 5 = 0 (2) x2 + 3x – 4 = 0 […]
Read More →Linear Equations in two Variables If the equation has more than one variable and the highest power of variable, appearing in the equation is 1, such that variables are not multiplied each other then this type of equation is known as “linear equation in two variable”. Some examples of linear equations in two variables are, […]
Read More →Solve linear equations in one variable We will learn how to solve linear equations using mathematical operations, like addition, subtraction, multiplication and division. Here are steps to solve a linear equation in one variable. When variables on both sides of the equations, then following steps are followed for solving the equations. Some examples are given […]
Read More →Convert the following statements in equations (a) 4 times of a number x is 24. (b) 10 times of a number y is 80. (c) The sum of number x and 3 is 9. (d) Seven times y plus 7 gets 77. (e)The difference between y and 3 […]
Read More →Simultaneous equations by Elimination Method Steps for solve linear equations with elimination method. Step 1: First we arrange both equations in standard form, placing like variables and constants one above the other. Step 2: Choose a variable (x or y) to eliminate, Multiply both equations by a suitable(non zero) constant to make the coefficients of one […]
Read More →Types of sets In set theory, we will learn Type of sets as Finite and Infinite sets Singleton set Cardinal number of a set Equal and Equivalent sets Empty set Overlapping set Subsets Disjoint set Universal set 1. Finite set: Finite set: In a set number of elements is limited or numbers are counted is called […]
Read More →Square Root Table From 1 To 100 Here are square root of numbers from 1 to 100. N √N N √N 1 1 […]
Read More →Common Formula’s in Maths Square Formula’s 1. (a + b) 2 = (a) 2 + (b) 2 + 2ab 2. (a – b) 2 = (a) 2 + (b) 2 – 2ab 3. (a) 2 – (b) 2 = (a + b)(a – b) 4. (x + a) (x + b) = x2 + (a + b)x + ab 5. (a + b + c)2 = a2 + b2 + c2 + 2ab […]
Read More →Important sets in Mathematics 1. N = Set of all “Natural” numbers. 2. W = Set of all “Whole” numbers. 3. Q = Set of all “Rational” numbers. 4. Z = Set of all “Integers”. 5. R = Set of all “Real” numbers. 6. Z + = Set of “Positive” Integers. 7. Q + = Set of “Positive Rational” numbers. 8. R + = Set of “Real” numbers.
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