Question

Evaluate :

(i)
$\sqrt{ - 25} \times \sqrt{ - 49}$
(ii)
$\sqrt{ - 36} \times \sqrt{16}$
​

Answer 1

$\mathfrak{\underline{\underline{\large{Solution:-}}}}$

$\bf{\purple{We \: have}}$

$\sf{\blue{(i) \sqrt{ - 25} \times \sqrt{ - 49} = (5i) \times (7i)}}$

$\sf{\blue{( = (35 \times {i}^{2} ) = 35 \times ( - 1) = ( - 35)}}$

$\tt{\red{(ii)\sqrt{ - 36} \times \sqrt{16} = (6i) \times 4 = 24i}}$

Answer 2

Step-by-step explanation:

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