3] Cotx - tanx =
a) cot 2x
b]2 cot 2x
c] 2 cotx
d] cot? 2x
Answers
Answered by
1
Answer:
3] Cotx - tanx =
a) cot 2x
b]2 cot 2x
c] 2 cotx
d] cot? 2x
Answered by
1
Answer:
The answer is
=
2
csc
(
2
x
)
Explanation:
We need
tan
x
=
sin
x
cos
x
cot
x
=
cos
x
sin
x
cos
2
x
+
sin
2
s
=
1
sin
2
x
=
2
sin
x
cos
x
csc
x
=
1
sin
x
Therefore,
cot
x
+
tan
x
=
cos
x
sin
x
+
sin
x
cos
x
=
cos
2
x
+
sin
2
x
sin
x
cos
x
=
1
sin
x
cos
x
=
2
sin
(
2
x
)
=
2
csc
(
2
x
)
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