1 . (9x2+16y2)রাশিটির সাথে কোনটি যোগ করলে যোগফল পূর্ণবর্গ হবে?

• A. 12xy
• B. 24xy
• C. 15xy
• D. 30xy

Answer: Option B

Explanation:

2 . x- 1 ⁄ x=5 হলে x2+1 ⁄ x2=কত?

• A. 21
• B. 27
• C. 28
• D. 29

Answer: Option B

Explanation:

3 . x =√ 3 +√2 হলে x2+1/x2 এর মান কত?

• A. 1
• B. 8√3
• C. 10
• D. 18√3

Answer: Option C

Explanation:

4 . x4-x2+1=0

• A. $৩$
• B. $২$
• C. $১$
• D. $০$

Answer: Option D

Explanation:

5 . x=5+4

• A. $36$
• B. $27$
• C. $18$
• D. $9$

Answer: Option C

Explanation:

6 . x3-1,x3+1,x4+x2+1

• A. $x^7-1$
• B. $x^7-1$
• C. $x^6-1$
• D. $x^5-1$

Answer: Option C

Explanation:

7 . x2+12=5x2

• A. $\sqrt{3}$
• B. $1$
• C. $2\sqrt{2}$
• D. $8$

Answer: Option B

Explanation:

8 . x3-6x2+11x-6

• A. $x-1$
• B. $x-2$
• C. $x-3$
• D. $x-4$

Answer: Option D

Explanation:

9 . x4-x2+1=0

• A. $3$
• B. $1$
• C. $2$
• D. $4$

Answer: Option B

Explanation:

10 . x+1x=3

• A. $\sqrt{3}-2$
• B. $1$
• C. $5$
• D. $7$

Answer: Option B

Explanation:

11 . fx=x2+1x+1

• A. $f\left(1\right)=1$
• B. $f\left(0\right)=1$
• C. $f\left(-1\right)=1$
• D. $f\left(1\right)=3$

Answer: Option D

Explanation:

12 . x2+1x2

• A. 1
• B. 0
• C. -2
• D. 2

Answer: Option A

Explanation:

13 . x4+x2+1

• A. $x^2-x+1$
• B. $x^3+1$
• C. $x+1$
• D. $x^2+x+1$

Answer: Option A

Explanation:

14 . x+1x=2

• A. 0
• B. -2
• C. -3
• D. -1

Answer: Option A

Explanation:

15 . 9x2+16y2

• A. $6xy$
• B. $12xy$
• C. $24xy$
• D. $144xy$

Answer: Option C

Explanation:

16 . x3-1, x3+1, x4+x2+1

• A. $\left(x-4\right)$
• B. $x^6-1$
• C. $\left(x-2\right)$
• D. $\left(x-3\right)$

Answer: Option B

Explanation:

17 . x4+x2+1

• A. $\left(x^2+x+1\right)\left(x^2+x-1\right)$
• B. $\left(x^2-x+1\right)\left(x^2+x-1\right)$
• C. $\left(x^2+x+1\right)\left(x^2-x+1\right)$
• D. $\left(x^2+x+1\right)\left(x+x+1\right)$

Answer: Option C

Explanation:

18 . x-1x=4

• A. 18
• B. 16
• C. 14
• D. 22

Answer: Option A

Explanation:

19 . x-1x=7

• A. 49
• B. 50
• C. 51
• D. 52

Answer: Option C

Explanation:

20 . x-1x=4

• A. 18
• B. 16
• C. 11
• D. 15

Answer: Option A

Explanation:

21 . x-1x=4

• A. 10
• B. 14
• C. 16
• D. 18

Answer: Option D

Explanation:

22 . fx=x2+1x-1-1

• A. $f\left(0\right)=\infty$
• B. $f\left(1\right)=-1$
• C. $f\left(1\right)=0$
• D. $f\left(-1\right)=-1$

Answer: Option D

Explanation:

23 . x+y=5,x+4y=4,

• A. 60
• B. 40
• C. 20
• D. 80

Answer: Option D

Explanation:

24 . x+y=5,x+4y=4,

• A. 60
• B. 40
• C. 20
• D. 80

Answer: Option D

Explanation:

25 . x4-x2+1=0

• A. 4
• B. 2
• C. 1
• D. 0

Answer: Option C

Explanation:

26 . x4-x2+1=0

• A. ৩
• B. ২
• C. ১
• D. ০

Answer: Option D

Explanation:

27 . x2+12x+3y=0

• A. (–6, −12)
• B. (6,12)
• C. (-6,12)
• D. (6,-12)

Answer: Option C

Explanation:

28 . 3x3-2x2+1=0

• A. 1
• B. -2
• C. 2
• D. কোনটিই নয়

Answer: Option B

Explanation:

29 . 16y2-9x2+18x+64y+199=0

• A. অধিবৃত্ত
• B. বৃত্ত
• C. পরাবৃত্ত
• D. উপবৃত্ত

Answer: Option A

Explanation:

30 . limx→∞x22x4+1+3x3+7+5x2+1+6x2-5

• A. 8
• B. 10
• C. 11
• D. 16

Answer: Option C

Explanation:

31 . y=x-5

• A. $\left(\frac{-16}{5},\frac{9}{5}\right)$
• B. $\left(\frac{16}{5},\frac{-9}{5}\right)$
• C. $\left(\frac{16}{5},\frac{9}{5}\right)$
• D. $\left(\frac{-16}{5},\frac{-9}{5}\right)$

Answer: Option C

Explanation:

32 . fx=xx2+1

• A. $\left(-\infty ,0\right)$
• B. $\left(-1,1\right)$
• C. $\left(0,\infty \right)$
• D. $\left(-1,\infty \right)$

Answer: Option B

Explanation: