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Mathematics
Mathematics
Problem
12. If
y
=
cos
−
1
x
y=\cos ^{-1} x
y
=
cos
−
1
x
, Find
d
2
y
d
x
2
\frac{d^{2} y}{d x^{2}}
d
x
2
d
2
y
in terms of
y
y
y
alone.
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