cosecA(secA-1)-cosA(1-cosA)=tanA-sinA
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Answer:
L
H
S
=
(
1
−
cos
A
)
(
1
+
sec
A
)
=
(
1
−
cos
A
)
(
1
+
1
cos
A
)
=
(
1
−
cos
A
)
(
1
+
cos
A
)
cos
A
=
1
−
cos
2
A
cos
A
=
sin
2
A
cos
A
=
sin
A
cos
A
⋅
sin
A
=
tan
A
sin
A
=
R
H
S
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