• A. $১৫\%$
• B. $২০\%$
• C. $২১\%$
• D. $২৫\%$

Answer: Option C

Explanation:

• A. $x>0gএবংx=not1$
• B. $x\ge 0gএবংx=not1$
• C. $x>0gঅথবাx=not1$
• D. $x\ge 0gঅথবাx=not1$

Answer: Option C

Explanation:

• A. $\pm 1$
• B. $\pm 7$
• C. $\pm 5$
• D. $\pm 3$

Answer: Option B

Explanation:

• A. $x-1$
• B. $x-2$
• C. $x-3$
• D. $x-4$

Answer: Option D

Explanation:

• A. $a$
• B. $a>b$
• C. $a=b$
• D. $a=not b$

Answer: Option C

Explanation:

• A. 1
• B. 5
• C. 8
• D. 10

Answer: Option D

Explanation:

• A. $\left(0,0\right)$
• B. $\left(4,-3\right)$
• C. $\left(-4,3\right)$
• D. $\left(10,10\right)$

Answer: Option B

Explanation:

• A. $\sin \theta$
• B. $-\sin \theta$
• C. $\cos \theta$
• D. $-\cos \theta$

Answer: Option C

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

Answer: Option A

Explanation:

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

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. ১০
• B. ১৫
• C. ২৫
• D. ২০

Answer: Option D

Explanation:

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

Answer: Option A

Explanation:

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

Answer: Option D

Explanation: