1
1 - sin A
sec A + tan A
cOS A
Answers
Answered by
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Explanation:
We have,
cos
x
1
−
sin
x
,
=
cos
x
1
−
sin
x
×
1
,
=
cos
x
1
−
sin
x
×
1
+
sin
x
1
+
sin
x
,
=
cos
x
(
1
+
sin
x
)
1
−
sin
2
x
,
=
cos
x
(
1
+
sin
x
)
cos
2
x
,
=
1
+
sin
x
cos
x
,
=
1
cos
x
+
sin
x
cos
x
,
=
sec
x
+
tan
x
, as desired!
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