1 . a+b=3 ও ab=1 , তবে a-b এর মান কত?

• A. √ ৫
• B. √ ৭
• C. ০
• D. ৫

Answer: Option A

Explanation:

2 . a3+b3

• A. $0$
• B. $54$
• C. $9$
• D. $45$

Answer: Option A

Explanation:

3 . a3+b3

• A. 9
• B. 27
• C. 18
• D. 12

Answer: Option A

Explanation:

4 . a2+b2

• A. 27
• B. 18
• C. 9
• D. 5

Answer: Option D

Explanation:

5 . a+b=3  , a-b=2

• A. $\frac{1}{2}$
• B. $\frac{1}{4}$
• C. 4
• D. 1

Answer: Option D

Explanation:

6 . a+b=3

• A. $-3$
• B. $3$
• C. $\frac{\sqrt{3}}{2}$
• D. $-3\sqrt{3}$

Answer: Option A

Explanation:

7 . a+b=3,ab=1

• A. 5
• B. 6
• C. 10
• D. 8

Answer: Option B

Explanation:

8 . a+b=3

• A. $8$
• B. $6$
• C. $5$
• D. $4$

Answer: Option C

Explanation:

9 . a+b=3

• A. $10$
• B. $12$
• C. $15$
• D. $18$
• D. None

Answer: Option A

Explanation: