• A. $\frac{15}{56}$
• B. $\frac{3}{7}$
• C. $\frac{28}{65}$
• D. $\frac{13}{22}$

Answer: Option A

Explanation:

• A. h + v
• B. h - v
• C. $\sqrt{\frac{2h}{g}} + \frac{h}{v}$
• D. কোনটিই নয়

Answer: Option C

Explanation:

• A. $\left[\begin{array}{c}1\\ 1\\ 1\end{array}\right]$
• B. $\left[\begin{array}{ccc}1& -1& 1\\ 1& -1& 1\\ 1& -1& 1\end{array}\right]$
• C. $\left[3\right]$
• D. $\left[-\begin{array}{ccc}1& 1& 1\\ 1& -1& -1\\ 1& 1& 1\end{array}\right]$

Answer: Option D

Explanation:

• A. 7N
• B. 3N
• C. $\sqrt{29} N$
• D. 5N

Answer: Option A

Explanation:

• A. $a=1, b=2$
• B. $a=-\frac{3}{7}, b=\frac{2}{3}$
• C. $a=0, b=1$
• D. $a=\frac{1}{2}, b=4$

Answer: Option C

Explanation:

• A. $a=1,b=2$
• B. $a = \frac{- 3}{7} , b = \frac{2}{3}$
• C. $a=0,b=1$
• D. $a = \frac{1}{2} , b = 4$

Answer: Option B

Explanation:

• A. $120°$
• B. ${\cos }^{-1}\left(\frac{11}{14}\right)$
• C. ${\cos }^{-1}\left(\frac{13}{14}\right)$
• D. ${\sin }^{-1}\left(\frac{11}{14}\right)$

Answer: Option A

Explanation:

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

Answer: Option B

Explanation:

• A. $\frac{5}{11}$
• B. $\frac{7}{11}$
• C. $\frac{6}{11}$
• D. $\frac{6}{121}$

Answer: Option A

Explanation:

• A. $\frac{1}{18}$
• B. $\frac{1}{6}$
• C. $\frac{1}{216}$
• D. $\frac{1}{36}$

Answer: Option D

Explanation:

• A. 3x+7y-13=0
• B. 7x+3y-13=0
• C. 7x+3y+13=0
• D. 7x+3y-15=0

Answer: Option B

Explanation:

• A. $\frac{5}{42}$
• B. $\frac{1}{3}$
• C. $\frac{1}{21}$
• D. $\frac{1}{7}$

Answer: Option A

Explanation:

• A. $48f{t}^2$
• B. $24f{t}^2$
• C. $28f{t}^2$
• D. $38f{t}^2$

Answer: Option A

Explanation:

• A. $48f{t}^2$
• B. $24f{t}^2$
• C. $28f{t}^2$
• D. $38f{t}^2$

Answer: Option A

Explanation:

• A. $\left[\begin{array}{cc}3& 2\\ -4& 5\end{array}\right]$
• B. $\left[\begin{array}{cc}3& -4\\ -2& 5\end{array}\right]$
• C. $\left[\begin{array}{cc}4& -5\\ 3& 2\end{array}\right]$
• D. $\left[\begin{array}{cc}3& 4\\ 2& 5\end{array}\right]$

Answer: Option B

Explanation: