• A. 3 অথবা 6
• B. 2 অথবা 5
• C. 2 অথবা 6
• D. 3 অথবা 5

Answer: Option B

Explanation:

• A. $x^2+2x+3=0$
• B. $x^2-x-7=0$
• C. $x^2-5x+6=0$
• D. $6x^2-5x+1=0$

Answer: Option B

Explanation:

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

Answer: Option D

Explanation:

• A. 2
• B. 3
• C. -2
• D. -3

Answer: Option A

Explanation:

• A. 0, 24
• B. 0,-24
• C. 1,-1
• D. -2,1

Answer: Option A

Explanation:

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option A

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

Answer: Option A

Explanation:

• A. $r^2+r\left(5\sin \theta +4\cos \theta \right)+9=0$
• B. $r^2+r\left(5\sin \theta -4\cos \theta \right)+9=0$
• C. $r^2-r\left(5\sin \theta +4\cos \theta \right)+9=0$
• D. $r^2-r\left(5\sin \theta -4\cos \theta \right)+9=0$

Answer: Option D

Explanation:

• A. (-4,2)
• B. (4,-2)
• C. (2,-1)
• D. (4,2)

Answer: Option A

Explanation:

• A. 10
• B. -10
• C. 20
• D. 1

Answer: Option A

Explanation: