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Question
Mathematics
The value of tan3A - tan2A - tanA is equal to
Q. The value of
t
an
3
A
−
t
an
2
A
−
t
an
A
is equal to
2224
200
Trigonometric Functions
Report Error
A
t
an
3
A
t
an
2
A
t
an
A
57%
B
−
t
an
3
A
t
an
2
A
t
an
A
14%
C
t
an
A
t
an
2
A
−
t
an
2
A
t
an
3
A
−
t
an
3
A
t
an
A
15%
D
None of these
14%
Solution:
t
an
3
A
=
t
an
(
2
A
+
A
)
⇒
t
an
3
A
=
1
−
t
an
2
A
t
an
A
t
an
2
A
+
t
an
A
⇒
t
an
3
A
−
t
an
3
A
t
an
2
A
t
an
A
=
t
an
2
A
+
t
an
A
⇒
t
an
3
A
−
t
an
2
A
−
t
an
A
=
t
an
3
A
t
an
2
A
t
an
A