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Square root and cube root

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  1. If √(75.24 + N ) = 8.71, then the value of N is ?
    1. .6241
    2. 6.241
    3. 62.41
    4. None of these
Correct Option: A

75.24 + N = 8.71 x 8.71
⇒ N = 75.8641 - 75.24
∴ N = .6241


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