• A. $\frac{1}{2}\frac{7x^2}{2\log e7}+c$
• B. $\frac{1}{2}\frac{7x^2}{2\log e7}+c$
• C. $\frac{7x^2}{\log 7^c}+c$
• D. Try your self

Answer: Option D

Explanation:

• A. $3$
• B. $2$
• C. $1$
• D. $0$

Answer: Option D

Explanation:

• A. 1
• B. 5
• C. 8
• D. 10

Answer: Option D

Explanation:

• A. $1$
• B. $3$
• C. $5$
• D. $5$

Answer: Option D

Explanation:

• A. $1$
• B. $3$
• C. $2$
• D. $4$

Answer: Option A

Explanation:

• A. $2$
• B. $-2$
• C. $1/2$
• D. $-\frac{1}{2}$

Answer: Option A

Explanation:

• A. 3
• B. 1
• D. -3

Answer: Option D

Explanation:

• A. 21
• B. 27
• C. 3
• D. 7

Answer: Option C

Explanation:

• A. $-12$
• B. $-48$
• C. $-42$
• D. $12$

Answer: Option A

Explanation:

• A. 2,3
• B. -5,1
• C. -2,3
• D. 1,-5

Answer: Option A

Explanation:

• A. $f\left(1\right)=1$
• B. $f\left(0\right)=1$
• C. $f\left(-1\right)=1$
• D. $f\left(1\right)=3$

Answer: Option D

Explanation:

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

Answer: Option B

Explanation:

• A. 36
• B. 16
• C. 35
• D. 28

Answer: Option B

Explanation:

• A. $x=6$
• B. $x<6$
• C. $x\ge 6$
• D. $x>6$

Answer: Option C

Explanation:

• A. $\frac{-9}{5}$
• B. $\frac{9}{5}$
• C. $\frac{7}{5}$
• D. $-\frac{7}{5}$

Answer: Option B

Explanation: