PYQ - Trigonometric ratios — task. Maths CBSE Live product, Class 10.

1. Given that $sin \ \alpha =$$\frac{1}{2}$ and $cos \ \beta =$ $0$, hence the value of $(\alpha + \beta)$ $=$ ________$^\circ$

2. If $\cos (\alpha + \beta) = $$\frac{1}{2}$, hence value of $\cos \left( \frac{\alpha + \beta}{2} \right)$ $=$

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6. PYQ - Trigonometric ratios