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Standard XII
Mathematics
Derivative of One Function w.r.t Another
15. If 1/2 si...
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15. If 1/2 sin inverse [3sin2theta/5+4cos2theta]=tan inverse x then x=?
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Q.
Inverse circular functions,Principal values of
s
i
n
−
1
x
,
c
o
s
−
1
x
,
t
a
n
−
1
x
.
t
a
n
−
1
x
+
t
a
n
−
1
y
=
t
a
n
−
1
x
+
y
1
−
x
y
,
x
y
<
1
π
+
t
a
n
−
1
x
+
y
1
−
x
y
,
x
y
>
1
.
Solve
(a)
c
o
s
(
2
s
i
n
−
1
x
)
=
1
/
9
(b)
c
o
s
−
1
(
3
/
5
)
−
s
i
n
−
1
(
4
/
5
)
=
c
o
s
−
1
x
(c) If
s
i
n
(
s
i
n
−
1
1
5
+
c
o
s
−
1
x
)
=
1
, then prove that x is equal to
1
/
5
.
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Derivative of One Function w.r.t Another
Standard XII Mathematics
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