exercise 3.2 class 10 maths 1. Solve the following pair of linear equations by substitution method. 5 = -2 m + 3 2 = – 2m m = -1 Ans. 3. Form the pair of linear equations for the following problems and find their solution by substitution method. (i) The difference between … Read more
exercise 1.2 Class 10 Maths 1. Prove that √5 is irrational. Sol. Let us assume to the contrary that √5 is an irrational number. So it can be written in the form of p/q where p and q are coprime integers and q is not equal to zero. √5= p/q squaring both sides (√5)² = … Read more
exercise 1.1 class 10 maths 1. Express each number as a product of its prime factors: (i) 140 140 = 2 x 2 x 5 x 7 = 2² x 5 x 7 (ii) 156 = 2 x 2 x 3 x 13 =2² x 3 x 13 (iii) 3825 = 3 x 3 x … Read more
