1 . x+y=2,x2+y2=4 হলে

• A. $4$
• B. $8$
• C. $12$
• D. $16$

Answer: Option B

Explanation:

2 . x+y=2

• A. $2$
• B. $14$
• C. $8$
• D. $1$

Answer: Option C

Explanation:

3 . x2+y2=4 x3 + y3

• A. 6
• B. 7
• C. 8
• D. 10

Answer: Option C

Explanation:

4 . x2+y2=4 x3+y3

• A. 4
• B. 8
• C. 12
• D. 16

Answer: Option B

Explanation:

5 . x2+y2=4

• A. 14
• B. 16
• C. 22
• D. 30

Answer: Option C

Explanation:

6 . x=r cos30°,yr sin30°□□□x2+y2=4

• A. 1
• B. 2
• C. 3
• D. 4

Answer: Option B

Explanation:

7 . x2+y2=4

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

Answer: Option C

Explanation: