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If $\cos A = \frac{1}{2}$, then the value of $\sin^2 A + 2 \cos^2 A$ is :
- (a)$\frac{3}{2}$
- (b)$\frac{5}{4}$
- (c)$-1$
- (d)$\frac{1}{2}$
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(b) $\frac{5}{4}$ (1 Mark)
If A = 1/2 , then the value of 2 A + 2 2 A is :
CBSE Class 10 Maths PYQ · Trigonometry · Specific Angles Expression · 1 Mark · March 2026 · Standard
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