Question
If 
Find A and B.
Solution
⇒A + B = 60° ...(i)
and
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⇒A-B = 30° ...(ii)
Solving (i) and (ii), we get
A = 45° and B = 15°.
If Find A and B.
Choose the correct option and justify your choice:
sin 2A = 2 sin A is true when A =
(A) 0° (B) 30° (C) 45° (D) 60°
Mock Test Series
