Inverse Cosine Equation for x (Jee Mains) | ExamDuo
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Sum, Difference & Multiple Angles
Medium
Inverse Cosine Equation for x
If cos⁻¹
(
2
3x
)
+ cos⁻¹
(
3
4x
)
=
π
2
(
x >
3
4
)
, then x is equal to :
SELECT ONE OPTION
A
√
146
12
B
√
145
12
C
√
145
11
D
√
145
10
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