EXERCISE 4C Evaluate: Read more »

EXERCISE 4B Find the value of each of the following using the short-cut method: (1) (25) 3 Solution: Here, a = 2 and b = 5        a 2 ×a a 3        a 2 ×3b 3… Read more »

EXERCISE 4A (1) Evaluate: (i) (8) 3  = 8 × 8 × 8 = 512 (ii) (15) 3  = 15 × 15 × 15 = 3375 (iii) (21) 3  = 21 × 21 × 21 = 9261 (iv) (60) 3  = 60 × 60 × 60 = 2… Read more »

EXERCISE 3H OBJECTIVE QUESTIONS Tick (√) the correct answer in each of the following: (1) Which of the following numbers is not a perfect square? Ans: (c) 54… Read more »

EXERCISE 3G Evaluate: Read more »