π/4∫√tanx (1-tan x) da =?
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Answered by
0
Answer:
How do you prove
tan
[
x
+
(
π
4
)
]
=
1
+
tan
x
1
−
tan
x
?
Trigonometry Proving Identities
2 Answers
P dilip_k
May 28, 2016
as follows
Explanation:
Using formula
tan
(
A
+
B
)
=
tan
A
+
tan
B
1
−
tan
A
tan
B
in the expression of LHS
L
H
S
=
tan
(
x
+
π
4
)
=
tan
x
+
tan
(
π
4
)
1
−
tan
x
⋅
tan
(
π
4
)
=
1
+
tan
x
1
−
tan
x
=
R
H
S
proved
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