• A. ১/৩
• B. ১/৪
• C. ২/৩
• D. ১/২

Answer: Option D

Explanation:

• A. Parabola
• B. Ellipse
• C. circle
• D. hyperola

Answer: Option B

Explanation:

• A. $\frac{\mathrm{\pi }}{4}$
• B. $\frac{\mathrm{\pi }}{2}$
• C. $\frac{\mathrm{\pi }}{3}$
• D. $\mathrm{\pi }$

Answer: Option A

Explanation:

• A. 6
• B. 1
• C. $\frac{11}{6}$
• D. -1

Answer: Option B

Explanation:

• A. (1,0,0), (0,1,0) (0,0,1)
• B. (1,2,3) (0,1,2) (1,0,0)
• C. (1,2,3) (1,0,0), (0,1,0) (0,0,1)
• D. (2,3,5), (3,4,5), (0,1,0)

Answer: Option A

Explanation:

• A. ২ গুণ
• B. ৩ গুণ
• C. সমান
• D. $\frac{১}{২}$গুণ

Answer: Option D

Explanation:

• A. AB Not = BA
• B. AB = BA
• C. AB =-BA
• D. BA=B

Answer: Option A

Explanation:

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

Answer: Option A

Explanation:

• A. $\frac{d^{3}y}{d{x}^3}=0$
• B. $\frac{d^{2}y}{d{x}^2}+2a=0$
• C. $\frac{dy}{dx}+2ax-b=0$
• D. $\frac{d^{3}y}{d{x}^2}+\frac{d^{2}y}{d{x}^2}+\frac{dy}{dx}-2ay=0$

Answer: Option C

Explanation:

• A. ${\int }_a^{b}ydx$
• B. ${\int }_a^{b}dx$
• C. ${\int }_0^{a}f\left(x\right)dx$
• D. ${\int }_a^{b}f\left(x\right)dx$

Answer: Option D

Explanation:

• 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. $f"\left(2\right)<0$
• B. $f"\left(2\right)>0$
• C. $f"\left(2\right)=0$
• D. $f\text{'}\left(2\right)=0$

Answer: Option B

Explanation:

• A. $u$
• B. $2u$
• C. $4u$
• D. $3u$

Answer: Option D

Explanation:

• A. $\frac{a+b-c}{a-b+c}$
• B. $\frac{a+b-c}{a+b+c}$
• C. $\frac{a-b+c}{a+b-c}$
• D. $\frac{a+b+c}{a+b-c}$

Answer: Option A

Explanation:

• A. $8:3$
• B. $5:6$
• C. $3:8$
• D. $6:4$

Answer: Option A

Explanation: