CTET 2 Math and Science Sep 2015 Paper

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Question : 55 of 120

Marks: +1, -0

The value of

√^3{-2300}×√^3{5290}

is :

– 529
– 270
230
– 230

Solution:

√^3{-2300}×√^3{5290}

=√^3{-2300×5290}

=(-23×23×23×10×10×10)^{1/3}

=(-230)^{3×\;\;{1}/{3}}=-230

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