• A. $0$
• B. $-i$
• C. $-1$
• D. $1$

Answer: Option A

Explanation:

• A. ১৫:১৭
• B. ১৭:১৫
• C. ১৭:১৯
• D. ১৯:১৭

Answer: Option B

Explanation:

• A. 20
• B. $২১\frac{৩}{৪}$
• C. 19
• D. 18

Answer: Option C

Explanation:

• A. ৭০
• B. ৬০
• C. ৩০
• D. ২০

Answer: Option A

Explanation:

• A. 12
• B. 14
• C. 16
• D. 18

Answer: Option D

Explanation:

• A. $x=\frac{\pi }{6}$
• B. $x=\frac{-3\pi }{2}$
• C. $x=\frac{\pi }{2}$
• D. $x=0$

Answer: Option A

Explanation:

• A. $০°$
• B. $৯০°$
• C. $৪৫°$
• D. $১৮০°$

Answer: Option B

Explanation:

• A. ১
• B. অনির্ণেয়
• C. ০.০
• D. ০

Answer: Option B

Explanation:

• A. $4.72\times {10}^{-5}$
• B. $4.72\times {10}^{-3}$
• C. $4.72\times {10}^{-4}$
• D. $4.72\times {10}^{-7}$

Answer: Option A

Explanation:

• A. 0.550000325
• B. 0.550000625
• C. 0.550000525
• D. 0.550000425

Answer: Option B

Explanation:

• A. $2a^2{b}^2$
• B. $2b^2$
• C. $2ab$
• D. $2a^2$

Answer: Option B

Explanation:

• A. 3
• B. -3
• C. 7
• D. 9

Answer: Option B

Explanation:

• A. 3
• B. -3
• C. 7
• D. 9

Answer: Option B

Explanation:

• A. 3
• B. -3
• C. 7
• D. 9

Answer: Option B

Explanation:

• A. 1106.8 m
• B. 1200 m
• C. 1650 m
• D. 550.50 m

Answer: Option A

Explanation: