• A. a(a+b)
• B. ab(a+b)
• C. a+b
• D. $a{\left(a+b\right)}^2$

Answer: Option A

Explanation:

• A. $b$
• B. $a$
• C. $a-b$
• D. $a^2-b^2$

Answer: Option A

Explanation:

• A. $0$
• B. $\frac{1}{2}$
• C. $\frac{\sqrt{3}}{2}$
• D. $1$

Answer: Option C

Explanation:

• A. {3,5,8}
• B. {4,57}
• C. {3,4,5}
• D. {3,5,7}

Answer: Option D

Explanation:

• A. $\left\{6,1\right\}$
• B. $\left\{-2,7\right\}$
• C. $\left\{2,7\right\}$
• D. $\left\{7\right\}$

Answer: Option D

Explanation:

• A. $\left\{3,5,8\right\}$
• B. $\left\{4,57\right\}$
• C. $\left\{3,4,5\right\}$
• D. $\left\{3,5,7\right\}$

Answer: Option D

Explanation:

• A. 1 , 2 , 3 , 4
• B. 2 , 3 , 4
• C. 2 , 3 , 4 , 5
• D. ∅

Answer: Option D

Explanation:

• A. {1,2,3,4,5}
• B. {2,3,5}
• C. {2}
• D. ∅

Answer: Option C

Explanation:

• A. $\left\{7,9\right\}$
• B. $\left\{9\right\}$
• C. $\left\{7\right\}$
• D. $\theta$

Answer: Option C

Explanation:

• A. $9$
• B. $12$
• C. $3$
• D. $4$

Answer: Option A

Explanation:

• A. π
• B. 2π
• C. $\frac{2\mathrm{\pi }}{3}$

Answer: Option D

Explanation:

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

Answer: Option C

Explanation:

• A. 12
• B. 9
• C. 7
• D. 6

Answer: Option A

Explanation:

• A. $45\sqrt{5}$
• B. $47\sqrt{6}$
• C. $46\sqrt{5}$
• D. $43\sqrt{5}$

Answer: Option C

Explanation:

• A. $5$
• B. $8$
• C. $10$
• D. $11$

Answer: Option D

Explanation: