4-1.Complex numbers
easy

$\sqrt { - 2} \,\sqrt { - 3} = $

A

$\sqrt 6 $

B

$ - \sqrt 6 $

C

$i\sqrt 6 $

D

એકપણ નહીં.

Solution

(b) $\sqrt { – 2} \sqrt { – 3} = i\sqrt 2 \,i\,\sqrt 3 = {i^2}\sqrt 6 = – \sqrt 6 $

Std 11
Mathematics

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