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Mathematics
Mathematics
Problem
If
y
=
(
cos
x
)
(
cos
x
)
cos
x
y = (\cos x)^{(\cos x)^{\cos x}}
y
=
(
cos
x
)
(
c
o
s
x
)
c
o
s
x
, then show that
d
y
d
x
=
y
2
tan
x
y
log
cos
x
−
1
\frac{dy}{dx} = \frac{y^2 \tan x}{y \log \cos x - 1}
d
x
d
y
=
y
l
o
g
c
o
s
x
−
1
y
2
t
a
n
x
.
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