sin x/ 1 + cos x = tan X /2
Answers
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Step-by-step explanation: As
cos
x
=
1
−
2
sin
2
(
x
2
)
and
sin
x
=
2
sin
(
x
2
)
cos
(
x
2
)
Hence
1
−
cos
x
sin
x
=
1
−
(
1
−
2
sin
2
(
x
2
)
)
2
sin
(
x
2
)
cos
(
x
2
)
=
1
−
1
+
2
sin
2
(
x
2
)
2
sin
(
x
2
)
cos
(
x
2
)
=
2
sin
2
(
x
2
)
2
sin
(
x
2
)
cos
(
x
2
)
=
2
sin
(
x
2
)
sin
(
x
2
)
2
sin
(
x
2
)
cos
(
x
2
)
=
sin
(
x
2
)
cos
(
x
2
)
=
tan
(
x
2
)
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