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Standard XI
Mathematics
Question
If a < 0, b > 0, then
√
a
√
b
is equal to
−
√
∣
a
∣
b
None of these
√
∣
a
∣
b
i
√
∣
a
∣
b
A
−
√
∣
a
∣
b
B
None of these
C
√
∣
a
∣
b
i
D
√
∣
a
∣
b
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Solution
Verified by Toppr
√
a
.
√
b
=
√
a
b
However
a
<
0
and
b
>
0
Hence
−
a
>
0
.
Thus
√
a
b
is imaginary.
Hence
√
a
b
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4
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