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Byju's Answer
Standard XI
Mathematics
Square Root of a Complex Number
d/d xcos - 14...
Question
d
d
x
{
c
o
s
ā
1
(
4
x
3
27
ā
x
)
}
=
A
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B
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C
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D
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Solution
The correct option is
C
c
o
s
ā
1
(
4
(
x
3
)
3
.
x
3
)
=
3
c
o
s
ā
1
x
3
ā
d
y
d
x
=
ā
3
ā
1
ā
(
x
3
)
2
.
1
3
=
ā
3
ā
9
ā
x
2