• A. $i$
• B. $-i$
• C. $-1$
• D. $1$

Answer: Option D

Explanation:

• A. ${\mathrm{\pi r}}^2$
• B. $\mathrm{\pi r}$
• C. $2{\mathrm{\pi r}}^2$
• D. $2\mathrm{\pi r}$

Answer: Option D

Explanation:

• A. 188.496 m
• B. 198.596 m
• C. 189.596 m
• D. 187.694 m

Answer: Option A

Explanation:

• A. 12
• B. 10
• C. 6
• D. None of them

Answer: Option A

Explanation:

• A. 6
• B. 9
• C. 11
• D. 12

Answer: Option C

Explanation:

• A. ${\sin }^2\theta +{\cos }^2\theta =1$
• B. $\sin \theta +\cos \theta <1$
• C. ${\tan }^2-{\sec }^2\theta =1$
• D. ${\sin }^2+{\cos }^2>1$

Answer: Option A

Explanation:

• A. $30°$
• B. $18°$
• C. $24°$
• D. $12°$

Answer: Option D

Explanation:

• A. $0$
• B. $\frac{1}{4}$
• C. $\frac{1}{2}$
• D. $1$

Answer: Option D

Explanation:

• A. 1
• B. -1
• C. $-{\omega }^2$
• D. ${\omega }^2$

Answer: Option B

Explanation:

• A. $x=\omega$
• B. $x=1$
• C. $x=0$
• D. $x={\omega }^2$

Answer: Option B

Explanation:

• A. $০.১০$
• B. $০.০১$
• C. $০.০২$
• D. $০.০৫$

Answer: Option D

Explanation:

• A. ০.০০০০৩২
• B. ০.০০০০০৪
• C. ০.০০০০০০৪
• D. ০.০০০০০০৫

Answer: Option C

Explanation:

• A. ০.০০০০০০১
• B. ০.০০০০০১
• C. ০
• D. কোনটিই নয়

Answer: Option C

Explanation:

• A. ০.০০০১
• B. ০.০০০০০১
• C. ০.০০১
• D. ০.০০০০১

Answer: Option B

Explanation:

• A. $২৪০০০$
• B. $২৪০০০০$
• C. $২৪০০০০০$
• D. কোনোটিই নয়

Answer: Option A

Explanation: