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(Solved): If cot=a, prove that a+1=cosec(180)cosec2(270)cos() ...
If
cot
?
=
a
, prove that
a
+
1
=
cosec
(
18
0
?
?
?
)
?
cosec
2
(
27
0
?
?
?
)
?
cos
(
?
?
)
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