• A. $1400x$ টি
• B. $\frac{1400}{100+x}$ টি
• C. $\frac{100+x}{1400}$ টি
• D. $\frac{1400+x}{100}$ টি

Answer: Option B

Explanation:

• A. $\frac{x+y}{mn}$
• B. $\frac{x+y}{m+n}$
• C. $\frac{mx+ny}{m+n}$
• D. $\frac{mx+ny}{mn}$

Answer: Option C

Explanation:

• A. $4\pi -8$
• B. $2\pi -4$
• C. $4\pi +8$
• D. $2\pi +4$

Answer: Option A

Explanation:

• A. $\frac{\sqrt{3}}{2}{a}^2$
• B. $\frac{2}{3}{a}^2$
• C. $\frac{2}{\sqrt{3}}{a}^2$
• D. $\frac{\sqrt{3}}{4}{a}^2$

Answer: Option D

Explanation:

• A. $\frac{5}{11}$
• B. $\frac{1}{2}$
• C. $\frac{3}{5}$
• D. $\frac{6}{11}$

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

• A. 0.3
• B. √0.3
• C. 0.2
• D. 0.5

Answer: Option B

Explanation:

• A. ০.৩
• B. $\sqrt{০.৩}$
• C. $\frac{১}{৩}$
• D. $\frac{৩}{১}$

Answer: Option A

Explanation:

• A. $n^2+1$
• B. $n^2-1$
• C. $n^2$
• D. $n$

Answer: Option C

Explanation:

• A. $\frac{\mathrm{১}}{\mathrm{৬}}$
• B. $\frac{\mathrm{৩}}{\mathrm{১}\mathrm{৫}}$
• C. $\frac{\mathrm{২}}{\mathrm{১}\mathrm{১}}$
• D. $\frac{\mathrm{২}}{\mathrm{১}\mathrm{৩}}$

Answer: Option D

Explanation:

• A. $200m^2$
• B. $210m^2$
• C. $290m^2$
• D. $300m^2$

Answer: Option B

Explanation:

• A. ফেস কারেন্টের অর্ধেক
• B. ফেস কারেন্টের$\frac{1}{\sqrt{3}}$ভাগ
• C. ফেস কারেন্টের$\sqrt{3}$গুন
• D. ফেস কারেন্টের সমান

Answer: Option D

Explanation:

• A. $\frac{৩}{৫}$
• B. $\frac{৭}{১০}$
• C. $\frac{৭}{১২}$
• D. $\frac{৮}{১৫}$

Answer: Option B

Explanation:

• A. $\frac{১}{৪}$
• B. $\frac{১}{৩}$
• C. $\frac{১}{২}$
• D. $\frac{১}{৫}$

Answer: Option C

Explanation:

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

Answer: Option B

Explanation: