75
If $\alpha + \beta = 90^\circ$ and $\alpha = 2\beta$, then $\cos^2 \alpha + \sin^2 \beta$ is equal to:
- (a)$0$
- (b)$\frac{1}{2}$
- (c)$1$
- (d)$2$
Show SolutionHide Solution↓
(B) $\frac{1}{2}$
If α + β = 90° and α = 2β , then 2 α + 2 β is equal to:
CBSE Class 10 Maths PYQ · Trigonometry · Find Angle of T-Ratio · 1 Mark · March 2025 · Standard
Solve it yourself first — then press ↓ or tap Show Solution. Use ← → for previous / next question.