• A. $\frac{2}{7}$
• B. $\frac{1}{8}$
• C. $\frac{3}{8}$
• D. $\frac{3}{5}$

Answer: Option C

Explanation:

• A. 9
• B. 18
• C. 27
• D. 36

Answer: Option D

Explanation:

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

Answer: Option D

Explanation:

• A. $a{x}^2+bx+c=0$
• B. $y^2=ax$
• C. $x^2+y^2=16$
• D. $y^2=2x+7$

Answer: Option C

Explanation:

• A. $০.৩$
• B. $\sqrt{০.৩}$
• C. $\frac{১}{৩}$
• D. $\frac{২}{৫}$

Answer: Option A

Explanation:

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

Answer: Option C

Explanation:

• A. $a\left(a-3\right)$
• B. $a-3$
• C. $a$
• D. $a\left(a+3\right)$

Answer: Option A

Explanation:

• A. ১০
• B. ১৫
• C. ২৫
• D. ২০

Answer: Option D

Explanation:

• A. $\frac{১}{৪}$
• B. $\frac{১}{২}$
• C. $\frac{১}{৮}$
• D. $\frac{১}{১৬}$

Answer: Option B

Explanation:

• A. $3$
• B. $-3$
• C. $\frac{1}{3}$
• D. $-\frac{1}{3}$

Answer: Option B

Explanation:

• A. $1\frac{1}{6}$
• B. $1\frac{8}{45}$
• C. $1\frac{16}{99}$
• D. $1\frac{4}{25}$

Answer: Option D

Explanation:

• A. $5$
• B. $10$
• C. $15$
• D. $20$

Answer: Option B

Explanation:

• A. $\log a^m-\log a^n$
• B. $\log a^m+\log a^n$
• C. $\log a^m\times \log a^n$
• D. $কোনোটিই নয়$

Answer: Option A

Explanation:

• A. $\sin \theta =\frac{b}{a^2+b^2}$
• B. $\cos \theta =\frac{a}{\sqrt{a^{2+}}{b}^2}$
• C. $\sec \theta =\frac{a^2+b^2}{a}$
• D. $\csc \theta =\frac{a^2+b^2}{a}$

Answer: Option B

Explanation:

• A. $\frac{1}{8}$
• B. $\frac{1}{6}$
• C. $\frac{3}{4}$
• D. $\frac{5}{24}$

Answer: Option D

Explanation: