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One of the possible values of $A$, for which $\cos 2A = \cos A$, is:
- (a)$0^{\circ}$
- (b)$30^{\circ}$
- (c)$45^{\circ}$
- (d)$90^{\circ}$
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Ans: (A) $0^{\circ}$
One of the possible values of A , for which 2A = A , is:
CBSE Class 10 Maths PYQ · Trigonometry · Find Angle of T-Ratio · 1 Mark · March 2026 · Basic
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