1 . sin221°+sin269°

• A. $1$
• B. $-1$
• C. $1/2$
• D. $\frac{1}{\sqrt{2}}$

Answer: Option A

Explanation:

2 . sin221°+sin269°=কত?

• A. -1
• B. 1
• C. 1/2
• D. 1 √ 2

Answer: Option B

Explanation: