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Byju's Answer
Standard XII
Chemistry
Classification of Hydrocarbons
derivative of...
Question
derivative of cos
2
x
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Solution
Let
y
=
cos
2
x
So
dy
dx
=
2
cos
2
-
1
x
×
d
dx
cosx
Using
the
formula
d
dx
x
n
=
nx
n
-
1
=
2
cosx
×
-
sinx
=
-
2
sinxcosx
=
-
sin
2
x
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Q.
Assertion :Let
f
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, then
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