sin 2α from cos(α+β) and cos(α-β) (Jee Mains) | ExamDuo
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Basic Ratios, Identities & Formulas
Medium
sin 2α from cos(α+β) and cos(α-β)
If 0 < β < α <
π
4
, cos (α + β) =
3
5
and cos (α - β) =
4
5
, then sin 2α is equal to
SELECT ONE OPTION
A
0
B
1
C
2
D
None of these.
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