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Standard XII
Mathematics
Algebra of Derivatives
Question
If
s
i
n
−
1
x
+
s
i
n
−
1
y
=
π
2
, then
d
y
d
x
is equal to
−
y
x
y
x
−
x
y
x
y
A
y
x
B
−
y
x
C
x
y
D
−
x
y
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Solution
Verified by Toppr
Given that,
s
i
n
−
1
x
+
s
i
n
−
1
y
=
π
2
∴
s
i
n
−
1
x
=
c
o
s
−
1
y
⇒
y
=
√
1
−
x
2
On differentiating with respect to x, we get
d
y
d
x
=
−
2
x
2
√
1
−
x
2
=
−
x
y
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9
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