y= cos×+×cos× find derivative
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Answer:
Explanation:
First from the differentiation of trigonometric functions :
d
d
x
cos
x
=
−
sin
x
d
x
d
d
x
cos
u
=
−
sin
u
⋅
d
u
Where
u
is a function of
x
so when You differentiate
y
=
cos
(
cos
x
)
You get the following:
d
y
=
−
sin
(
cos
x
)
d
cos
x
which gives You:
d
y
=
(
−
sin
(
cos
x
)
)
⋅
(
−
sin
x
⋅
d
x
)
and by simpilification you get:
d
y
d
x
cos
x
=
sin
x
⋅
sin
(
cos
x
)
Step-by-step explanation:
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