Math, asked by sandhyagi140, 10 months ago

√21×√189= 63 how explain

Answers

Answered by virat293

1

Answer:

multiply LHS then take square root

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Answered by Anonymous

1

Step-by-step explanation:

The number √189 can be written as

√21×√9=√21×3.

So √21×√189 = √21×√21×3 = 21×3 = 63.

Hence √21×√189=63.

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