21. Find the product of square root...
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21. Find the product of square root of 16 and square of 4? RRB NTPC (Phase 1) 2016 (1) 8 (2) 64 (3) 16 (4) 256

11th - 12th Class
Maths
Solution
215
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21. (2) therefore. Required product ( = ) Sqaure root of ( 16 times ) square of 4 ( =sqrt{16} times(4)^{2} ) ( =4 times 16 ) ( =64 )
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