1.
Find the square root of each of the following by prime factorisation.
(i)
225
441
(iii) 529
(iv)
40000
(v) 7744
(vi)
8281
(vii)
4096
(viii)
28900
Answers
Answered by
20
Answer:
1) √225 = √(3×3×5×5) = 3×5 =15
2) √441 = √(3×3×7×7) = 3×7 =21
3) √529 = √( 23×23) =23
4) √40000 = √( 2×2×2×2×2×2×5×5×5×5) = 2×2×2×5×5 = 200
5) √7744 = √(2×2×2×2×2×2×11×11) = 2×2×2×11 =88
6)√8281 = √(91×91) = 91
7) √4096= √( 2×2×2×2×2×2×2×2×2×2×2×2) = 2×2×2×2×2×2 = 64
8) 28900 = √(2×2×5×5×17×17) = 2×5×17 =170
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