• A. 11!/8
• B. 11!/3!
• C. 11!/4!
• D. 11!/6!

Answer: Option A

Explanation:

• A. 720
• B. 360
• C. 180
• D. 5040

Answer: Option C

Explanation:

• A. 180
• B. 360
• C. 90
• D. 280

Answer: Option A

Explanation:

• A. 1
• B. √3
• C. 3
• D. 1/2

Answer: Option B

Explanation:

• A. $\frac{1}{\mathrm{\pi }} : 2$
• B. $\mathrm{\pi } : 2$
• C. $1 : \mathrm{\pi }$
• D. $\frac{1}{2\mathrm{\pi }} : 2$

Answer: Option B

Explanation:

• A. $\frac{1}{x} : \frac{1}{y}$
• B. $\sqrt{x} : \sqrt{y}$
• C. $y : \frac{1}{x}$
• D. $y : x$

Answer: Option A

Explanation:

• A. $-\frac{2}{5}$
• B. $-\frac{8}{5}$
• C. $\frac{5}{2}$
• D. $\frac{2}{5}$

Answer: Option C

Explanation:

• A. $s=u+\frac{1}{2}f\left(2t-1\right)$
• B. $s=u-\frac{1}{2}f\left(2t-1\right)$
• C. $s=ut-\frac{1}{2}f\left(t-1\right)$
• D. $s=u-\frac{1}{2}f\left(2t+1\right)$

Answer: Option B

Explanation:

• A. $-\frac{3\mathrm{\pi }}{4}$
• B. $-\frac{\mathrm{\pi }}{4}$
• C. $\frac{\mathrm{\pi }}{4}$
• D. $\frac{3\mathrm{\pi }}{4}$

Answer: Option B

Explanation:

• A. $R=2\sqrt{h{h}^{,}}$
• B. $R=4\sqrt{h+h^{,}}$
• C. $R=2\sqrt{h+h^{,}}$
• D. $R=4\sqrt{h{h}^{,}}$

Answer: Option D

Explanation:

• A. $\frac{1}{15}$
• B. $\frac{36}{65}$
• C. $\frac{1}{2}$
• D. $\frac{8}{15}$

Answer: Option B

Explanation:

• A. $x^2+y^2-25x=0$
• B. $3x^2+3y^2-25y=0$
• C. $x^2+y^2+25x=0$
• D. $3x^2+3y^2-25x=0$

Answer: Option D

Explanation:

• A. $5$
• B. $-3$
• C. $-\frac{3}{5}$
• D. $\frac{3}{5}$

Answer: Option C

Explanation:

• A. $x^2+y^2+4x+14=0$
• B. $x^2+y^2+4x-14y=0$
• C. $x^2+y^2-4x+14y=0$
• D. $x^2+y^2-4x-14y=0$

Answer: Option B

Explanation:

• A. ${\tan }^{-1}1$
• B. ${\tan }^{-1}\frac{1}{2}$
• C. ${\tan }^{-1}\frac{4}{3}$
• D. ${\tan }^{-1}\frac{3}{4}$

Answer: Option C

Explanation: