Q.

What is the square root of 1764?


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a

12

b

23

c

33

d

42 

answer is D.

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Detailed Solution

The number is given as 1764.
Evaluating prime factorization and making pairs to find the square root of 1764.
1764 = 2×2×3×3×7×7
So, the square root of 1764 is 2×3×7=42.
Hence, option 4 is correct.
 
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