• A. 1
• B. 2
• C. 4

Answer: Option D

Explanation:

• A. $x(\frac{1}{t_1}+\frac{1}{t_2})$
• B. $x(\frac{1}{t_1}-\frac{1}{t_2})$
• C. $\frac{x}{2}(\frac{1}{t_1}+\frac{1}{t_2})$
• D. $\frac{x}{2}(\frac{1}{t_1}-\frac{1}{t_2})$

Answer: Option D

Explanation:

• A. $\sqrt{29}$
• B. $\sqrt{15.5}$
• C. $\sqrt{4.5}$
• D. $\sqrt{10.5}$

Answer: Option A

Explanation:

• A. ০.০৯
• B. ০.৯
• C. ০.০০৯
• D. ৯.০

Answer: Option B

Explanation:

• A. ১৬
• B. ৬৪
• C. ১২৮
• D. ২৫৬

Answer: Option A

Explanation:

• A. $\frac{3a^2}{4}$
• B. 2πa
• C. 2π
• D. 6π

Answer: Option B

Explanation:

• A. sinθ
• B. cosθ
• C. tanθ
• D. cotθ

Answer: Option B

Explanation:

• A. $8^3{x}^9$
• B. $8^{15}{x}^{10}$
• C. $8^6{x}^9$
• D. $8^6{x}^2$

Answer: Option B

Explanation:

• A. ৩
• B. ২
• C. ৬
• D. ৮

Answer: Option A

Explanation:

• A. 60/8
• B. 64/8
• C. 63/8
• D. 69/8

Answer: Option C

Explanation:

• A. (7,4)
• B. (9,6)
• C. (10,7)
• D. (11,8)

Answer: Option D

Explanation:

• A. $DP=\frac{TR}{TP}$
• B. $DP=\frac{TP}{TA}$
• C. $DP=\frac{TD}{TR}$
• D. $DP=\frac{TD}{TA}$

Answer: Option B

Explanation:

• A. $\frac{২৫}{৯}$
• B. $\frac{৭}{২২}$
• C. $\frac{২২}{৭}$
• D. $\frac{৫}{৩}$

Answer: Option C

Explanation:

• A. ${(2n-1)}^2$
• B. $n^2$
• C. $\frac{n\left(n+1\right)}{2}$
• D. ${\left\{\frac{n\left(n+1\right)}{2}\right\}}^2$

Answer: Option B

Explanation:

• A. 81
• B. 9
• C. 144
• D. 12

Answer: Option C

Explanation: