Class 11

4-1.Complex numbers question bank (Maths)

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Q1.

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

(A)
$\sqrt{6}$
(B)
$-\sqrt{6}$
(C)
$i\sqrt{6}$
(D)
None of these
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Q2.

If $n$ is a positive integer,then which of the following relations is false?

(A)
$i^{4n} = 1$
(B)
$i^{4n - 1} = i$
(C)
$i^{4n + 1} = i$
(D)
$i^{-4n} = 1$
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