1 . x-1x=2

• A. 32
• B. 33
• C. 34
• D. 35

Answer: Option C

Explanation:

2 . x-1x=2

• A. 30
• B. 31
• C. 32
• D. 34

Answer: Option D

Explanation:

3 . x-1x=4

• A. 34
• B. 31
• C. 32
• D. 3

Answer: Option A

Explanation:

4 . x-1x=2

• A. 30
• B. 31
• C. 32
• D. 34

Answer: Option D

Explanation:

5 . x4=81

• A. $\frac{81}{4}$
• B. $\frac{4}{81}$
• C. 7
• D. 3

Answer: Option D

Explanation:

6 .  y=(2x−5)3 then d4y/dx4=?

• A. o
• B. 44
• C. 50
• D.

Answer: Option A

Explanation:

7 . logex+logx3+logx4=?

• A. $\frac{1}{2}{\log }_{e}x$
• B. $\frac{7}{8}{\log }_{e}x$
• C. $\frac{9}{11}{\log }_e\sqrt{x}$
• D. $\frac{13}{12}{\log }_{e}x$

Answer: Option D

Explanation:

8 . Logex+logx3+logex4=

• A. $\frac{13}{12}{\log }_{e^x}$
• B. ${\log }_{e^x}$
• C. $\frac{1}{2}{\log }_{e^x}$
• D. ${\log }_e\sqrt{x}$

Answer: Option A

Explanation:

9 . logex+logex3+logex4= কত?

• A. $\frac{13}{12}{\log }_{e}X$
• B. ${\log }_{e}x$
• C. $\frac{1}{2}{\log }_{e}x$
• D. ${\log }_e\sqrt{x}$

Answer: Option A

Explanation:

10 . x4=?

• A. 27
• B. 256
• C. 64
• D. 128

Answer: Option B

Explanation:

11 . x+1x=3

• A. 47
• B. 51
• C. 27
• D. 49

Answer: Option A

Explanation:

12 . x+1x=2

• A. $-2$
• B. $2$
• C. $4$
• D. $14$

Answer: Option A

Explanation:

13 . logx4=2

• A. $2$
• B. $\pm 2$
• C. $4$
• D. $10$

Answer: Option A

Explanation:

14 . x3+1=x4=1

• A. $3$
• B. $2$
• C. $1$
• D. $0$

Answer: Option D

Explanation: