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Square root and cube root

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  1. Given that √4096 = 64, the value of √4096 + √40.96 + √.004096 is ?
    1. 70.4
    2. 70.464
    3. 71.104
    4. 71.4
Correct Option: B

√4096 + √40.96 + √.004096
= √4096 + √4096/100 + √4096/1000000
=√4096 + √4096/10 + √4096/1000
= 64 + 64/10 + 64/1000
= 70.464


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