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State with reason, whether the following is a surd. root(3)(2) root(3)(32) - Mathematics

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Question

State with reason, whether the following is a surd.

`root(3)(2) root(3)(32)`

Give Reasons
Sum
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Solution

`root(3)(2) root(3)(32)` is not a surd

Reason:

`root(3)(2) xx root(3)(32)`

= `root(3)(2 xx 32)`

= `root(3)(64)`

64 = 43,

Perfect cube,

So cube root is 4 rational.

Not a surd.

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Chapter 1: Rational and Irrational Numbers - EXERCISE 1C [Page 15]

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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 1 Rational and Irrational Numbers
EXERCISE 1C | Q 1. (v) | Page 15
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