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Question

If $a < 0, b > 0$ , then $a b$ is equal to

A

$- ∣ a ∣ b$

B

$∣ a ∣ b i$

C

$∣ a ∣ b$

D

none of these

Medium

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Solution

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Correct option is B)

$a < 0, b > 0$
$a b = - ∣ a ∣ b$
$= i ∣ a ∣ b$

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