1 . a+b=7 এবং  a 2 + b 2 = 25   হ ল   5 a b     এ র   মান কত হবে

• A. 12
• B. 60
• C. 35
• D. কোনটি না

Answer: Option A

Explanation:

2 . a+b=7 এবং a2+b2=25

• A. 12
• B. 10
• C. 6
• D. None of them

Answer: Option A

Explanation:

3 . a+b=7

• A. $12$
• B. $24$
• C. $36$
• D. $40$

Answer: Option B

Explanation:

4 . a+b=7

• A. 29
• B. 59
• C. 49
• D. 69

Answer: Option B

Explanation:

5 . a+b=7

• A. 29
• B. 49
• C. 59
• D. 69

Answer: Option C

Explanation:

6 . A এবং B এর মান কত হলে, A+B=7 এবং ab=10 হবে?

• A. a=2 , b=-5
• B. a=4, b=-3
• C. a=-2, b=-5
• D. a=5, b=2

Answer: Option D

Explanation:

7 . a+b=7

• A. 12
• B. 24
• C. 36
• D. 40

Answer: Option B

Explanation:

8 . a+b=7,ab=10

• A. 9
• B. 19
• C. 29
• D. 39

Answer: Option A

Explanation:

9 . a-b2

• A. 10
• B. 9
• C. 8
• D. 17

Answer: Option B

Explanation:

10 . a+b=7 এবং ab=10 হলে (a-b)= কত ?

• A. 4
• B. 3
• C. 2
• D. 8

Answer: Option B

Explanation:

11 . a+b=7

• A. $\sqrt{2}$
• B. $2$
• C. $1$
• D. $2\sqrt{10}$

Answer: Option C

Explanation:

12 . a+b=7,ab=3

• A. $\sqrt{3}$
• B. $\sqrt{7}$
• C. $5$
• D. $7$

Answer: Option C

Explanation: