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Byju's Answer
Standard XII
Mathematics
Standard Formulae - 3
how find the ...
Question
how find the integration this question [tan2x.tan3x.tan5x.]dx
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Solution
Dear Student,
We
know
that
,
tan
5
x
=
tan
3
x
+
2
x
⇒
tan
5
x
=
tan
3
x
+
tan
2
x
1
-
tan
3
x
.
tan
2
x
as
,
tan
X
+
Y
=
tan
X
+
tan
Y
1
-
tan
X
.
tan
Y
⇒
tan
5
x
-
tan
5
x
.
tan
3
x
.
tan
2
x
=
tan
3
x
+
tan
2
x
⇒
tan
5
x
.
tan
3
x
.
tan
2
x
=
tan
5
x
-
tan
3
x
-
tan
2
x
now
∫
tan
2
x
.
tan
3
x
.
tan
5
x
dx
=
∫
tan
5
x
-
tan
3
x
-
tan
2
x
dx
=
log
sec
5
x
5
-
log
sec
3
x
3
-
log
sec
2
x
2
+
C
Regards.
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