1 . x-y=2 এবং xy=24 হলে, x-এর ধনাত্মক মানটি ----

• A. 3
• B. 4
• C. 5
• D. 6

Answer: Option D

Explanation:

2 . x-y2=14

• A. 12
• B. 14
• C. 16
• D. 18

Answer: Option D

Explanation:

3 . x+2y=4

• A. $0$
• B. $1$
• C. $2$
• D. $3$

Answer: Option C

Explanation:

4 . xy=2

• A. 4
• B. 5
• C. 6
• D. 7

Answer: Option C

Explanation:

5 . xy=2

• A. $\frac{1}{3}$
• B. $\frac{1}{4}$
• C. $\frac{1}{2}$
• D. $\frac{1}{5}$

Answer: Option C

Explanation:

6 . x+y2=14

• A. 12
• B. 14
• C. 16
• D. 18

Answer: Option D

Explanation:

7 . xy=23

• A. $\frac{4}{5}$
• B. $\frac{5}{4}$
• C. $\frac{14}{15}$
• D. $\frac{20}{13}$

Answer: Option B

Explanation:

8 .

• A. $\pm 20$
• B. $\pm 5$
• C. $\pm 10$
• D. $\pm 15$

Answer: Option C

Explanation:

9 . x+y=3,xy=2

• A. $9$
• B. $18$
• C. $19$
• D. $27$

Answer: Option A

Explanation:

10 . y=2x2+esinxy=2x2+esin x

• A. $4x$
• B. $0$
• C. $1$
• D. $4x+\cos x{e}^{\sin x} 4x+\cos x{e}^{\sin x}$

Answer: Option B

Explanation:

11 . x+y=3, xy=2 হলে x3+y3 এর মান কত?

• A. ৯
• B. ১৮
• C. ১৯
• D. ২৭

Answer: Option A

Explanation:

12 . যদি (x-y)2=14 এবং xy=2 হলে x2+y2=কত?

• A. ১২
• B. ১৪
• C. ১৬
• D. ১৮

Answer: Option D

Explanation:

13 . x+y=8

• A. 32
• B. -32
• C. 512
• D. None of these

Answer: Option A

Explanation: