• A. $9^x$
• B. $3^{x+1}$
• C. $3^{3x}$
• D. $3^{x^3}$

Answer: Option B

Explanation:

• A. $4$
• B. $5$
• C. $6$
• D. $7$

Answer: Option B

Explanation:

• A. log 30
• B. log 40
• C. 3 log 7
• D. log 13

Answer: Option B

Explanation:

• A. সমকোণী
• B. সূক্ষকোণী
• C. সমবাহু
• D. সমদ্বিবাহু

Answer: Option A

Explanation:

• A. 50:75:36:45
• B. 36:75:50:40
• C. 50:75:45:36
• D. 18:12:20:25

Answer: Option C

Explanation:

• A. $2\left(x^2-y^2\right)$
• B. $2\left(x^2+y^2\right)$
• C. $-2\left(x^2+y^2\right)$
• D. $2\left(y^2-x^2\right)$

Answer: Option D

Explanation:

• A. 6
• B. 24
• C. 18
• D. 36

Answer: Option D

Explanation:

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

Answer: Option D

Explanation:

• A. 9
• B. 27
• C. 18
• D. 81

Answer: Option B

Explanation:

• A. 9
• B. 27
• C. 18
• D. 81

Answer: Option B

Explanation:

• A. $9$
• B. $27$
• C. $18$
• D. $81$

Answer: Option B

Explanation:

• A. $7-x$
• B. $5-x$
• C. $5+x$
• D. $12-x$

Answer: Option B

Explanation:

• A. $0$
• B. $2/3$
• C. $1$
• D. $3/2$

Answer: Option A

Explanation:

• A. $-\frac{5}{4}$
• B. $-\frac{4}{5}$
• C. $\frac{4}{5}$
• D. $\frac{5}{4}$

Answer: Option B

Explanation:

• A. 6
• B. 3
• C. 4
• D. 5

Answer: Option D

Explanation: