• A. x/y
• B. 1
• C. y/x
• D. ০

Answer: Option B

Explanation:

• B. 4
• C. 2
• D. 6

Answer: Option B

Explanation:

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

Answer: Option B

Explanation:

• A. 15
• B. 225
• C. 125
• D. ± 15

Answer: Option D

Explanation:

• A. বৃত্ত
• B. সরলরেখা
• C. উপবৃত্ত
• D. গোলকীয়

Answer: Option A

Explanation:

• A. -5
• C. 2
• D. 4

Answer: Option B

Explanation:

• B. $2\sqrt{3}$
• C. $2\sqrt{6}$
• D. $4\sqrt{3}$

Answer: Option D

Explanation:

• A. $x=1$
• B. $x=-\frac{1}{2}$
• C. $x=2$
• D. $x=-2$

Answer: Option D

Explanation:

• A. 30
• B. 35
• C. 215
• D. 230

Answer: Option B

Explanation:

• A. ±8
• B. 8
• C. -8
• D. ±4

Answer: Option A

Explanation:

• A. 27
• B. 25
• C. 125
• D. 47

Answer: Option A

Explanation:

• A. $\frac{3}{4}$
• B. -10
• C. $\frac{4}{3}$
• D. 10

Answer: Option B

Explanation:

• A. $x^2+y^2=4$
• B. $z^2+y^2=1$
• C. $2\left(x^2+y^2\right)=1$
• D. $3\left(x^2+y^2\right)=4$

Answer: Option B

Explanation:

• A. $2^n\cos \frac{n\mathrm{\pi }}{6}$
• B. $2^{n-1}\cos \frac{n\mathrm{\pi }}{3}$
• C. $2^n\cos \frac{n\mathrm{\pi }}{3}$
• D. $2^{n+1}\cos \frac{n\mathrm{\pi }}{3}$

Answer: Option D

Explanation:

• A. 4
• B. 3/4
• C. 4/3
• D. 9/16

Answer: Option A

Explanation: