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Byju's Answer
Standard XII
Mathematics
Composition of Trigonometric Functions and Inverse Trigonometric Functions
If 3 tan 2 θ-...
Question
If
3
tan
2
θ
-
3
=
0
then
θ
=
?
(a) 15°
(b) 30°
(c) 45°
(d) 60°
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Solution
As we know that,
tan
60
°
=
3
Thus
,
if
3
tan
2
θ
-
3
=
0
⇒
3
tan
2
θ
=
3
⇒
tan
2
θ
=
3
3
⇒
tan
2
θ
=
3
⇒
2
θ
=
60
°
⇒
θ
=
30
°
Hence
,
the
correct
option
is
b
.
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2
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If
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