• A. $10$
• B. $1$
• C. $4$
• D. $6$

Answer: Option B

Explanation:

• A. $x+y\pm 3\sqrt{2}=0$
• B. $x-y\pm 3\sqrt{2}=0$
• C. $x+2\pm 2\sqrt{3}=0$
• D. $x-y\pm 2\sqrt{3}=0$

Answer: Option B

Explanation:

• A. 9
• B. 1
• C. 3
• D. $\sqrt{8}$

Answer: Option D

Explanation:

• A. $\mathrm{\pi }$
• B. $2\mathrm{\pi }$
• C. $4\mathrm{\pi }$
• D. কোনটিই নয়

Answer: Option C

Explanation:

• A. x + 2y-5=0
• B. x - 2y+5=0
• C. x+2y-10=0
• D. 2x+y-5=0

Answer: Option A

Explanation:

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

Answer: Option B

Explanation:

• A. $\sqrt{14}$
• B. $2\sqrt{14}$
• C. $2\sqrt{2}$
• D. $2\sqrt{7}$

Answer: Option B

Explanation:

• A. 4
• B. 8
• C. 16
• D. 32

Answer: Option B

Explanation:

• A. 9
• B. 10
• C. 18
• D. 20

Answer: Option B

Explanation:

• A. $r=9\cos \theta$
• B. $r=3\cos \theta$
• C. $r+9\cos \theta =0$
• D. $r+3\cos \theta =0$

Answer: Option A

Explanation:

• A. 16
• B. -18
• C. -16
• D. 18

Answer: Option A

Explanation:

• A. $1$
• B. $5$
• C. $7$
• D. $10$

Answer: Option B

Explanation:

• A. $x-1=0,x+7=0$
• B. $x+1=0,x+7=0$
• C. $x+1=0,x-7=0$
• D. $x-1=0,x-7=0$

Answer: Option C

Explanation:

• A. r = 5
• B. r = 5 cos θ
• C. r = 5 sin θ
• D. r = 5 tan θ

Answer: Option C

Explanation:

• A. 4 একক (4 units)
• B. 10 একক (10 units)
• C. 16 একক (16 units)
• D. ৪ একক (8 units)

Answer: Option A

Explanation: