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The Square Root of 64 Divided by the Cube Root of 64 is

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Question

The square root of 64 divided by the cube root of 64 is

Options

  • 64

  • 2

  • \[\frac{1}{2}\]

  • 642/3

MCQ
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Solution

We have to find the value of `(2sqrt64)/(3sqrt64)`

So,

`(2sqrt64)/(3sqrt64) = (2(sqrt2 xx 2 xx 2 xx 2 xx 2 xx 2) )/(2(sqrt2 xx 2 xx 2 xx 2 xx 2 xx 2) )`

`= 2^(6xx 1/2)`

`= 2^(6xx 1/3)`

`= 2^(6xx 1/2)/2^(6xx 1/3)`

`(2sqrt64)/(3sqrt64) = 2^3/2^2`

`=2^(3-2)`

`=2^1`

= 2

The value of  `(2sqrt64)/(3sqrt64)` is 2.

Hence the correct choice is b. 

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Chapter 2: Exponents of Real Numbers - Exercise 2.4 [Page 29]

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RD Sharma Mathematics [English] Class 9
Chapter 2 Exponents of Real Numbers
Exercise 2.4 | Q 5 | Page 29

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