Ex 5.3
Ex 5.3, 1 (ii) Important
Ex 5.3, 1 (iii) Important
Ex 5.3, 1 (iv)
Ex 5.3, 2 (i) Important
Ex 5.3, 2 (ii)
Ex 5.3, 2 (iii) Important
Ex 5.3, 2 (iv)
Ex 5.3, 3 Important You are here
Ex 5.3, 4 (i)
Ex 5.3, 4 (ii)
Ex 5.3, 4 (iii) Important
Ex 5.3, 4 (iv)
Ex 5.3, 4 (v) Important
Ex 5.3, 4 (vi)
Ex 5.3, 4 (vii) Important
Ex 5.3, 4 (viii) Important
Ex 5.3, 4 (ix)
Ex 5.3, 4 (x) Important
Ex 5.3, 5 (i)
Ex 5.3, 5 (ii) Important
Ex 5.3, 5 (iii)
Ex 5.3, 5 (iv) Important
Ex 5.3, 5 (v) Important
Ex 5.3, 5 (vi)
Ex 5.3, 6 (i)
Ex 5.3, 6 (ii) Important
Ex 5.3, 6 (iii)
Ex 5.3, 6 (iv) Important
Ex 5.3, 6 (v)
Ex 5.3, 6 (vi)
Ex 5.3, 7 Important
Ex 5.3, 8
Ex 5.3, 9 Important
Ex 5.3, 10
Last updated at April 16, 2024 by Teachoo
Ex 5.3, 3 Find the square roots of 100 and 169 by the method of repeated subtraction. Square root of 100. 100 − 1 = 99 99 − 3 = 96 96 − 5 = 91 91 − 7 = 84 84 − 9 = 75 75 − 11 = 64 64 − 13 = 51 51 − 15 = 36 36 − 17 = 19 19 − 19 = 0 To find the square root, we subtract successive odd numbers from the number till we obtain 0. The total numbers you subtract is the square root of number. 69 – 21 = 48 48 – 23 = 25 25 – 25 = 0 Since, after subtracting 13 numbers, we obtained 0. ∴ √𝟏𝟔𝟗 = 13. Since, after subtracting 10 numbers, we obtained 0. ∴ √𝟏𝟎𝟎 = 10. Square root of 169. 169 − 1 = 168 168 − 3 = 165 165 − 5 = 160 160 − 7 = 153 153 − 9 = 144 144 − 11 = 133 133 − 13 = 120 120 − 15 = 105 Since, after subtracting 13 numbers, we obtained 0. ∴ √𝟏𝟔𝟗 = 13. To find the square root, we subtract successive odd numbers from the number till we obtain 0. The total numbers you subtract is the square root of number.