1 . a-5a+x=a2-25

• A. 5
• B. 6
• C. 7
• D. 8

Answer: Option A

Explanation:

2 . x=a2-7a+6,y=a2-2a+1,z=a2-5a+4

• A. $\left(a-4\right)$
• B. $\left(a-1\right)$
• C. $\left(a-6\right)$
• D. ${\left(a-1\right)}^2$

Answer: Option B

Explanation:

3 . x=a, x=b, ও y = f(x) দ্বারা আবদ্ধ তলের ক্ষেত্রফল -

• A. ∫abf/(x)dx
• B. ∫b0f(x−a)dx
• C. f(a)f(b)
• D.

Answer: Option A

Explanation:

4 . x=a বিন্দুতে f(x) ফাংশনের গরিষ্ঠ বা লঘিষ্ঠ মান থাকার প্রয়োজনীয় শর্ত কী

• A. f(a)=2
• B. f(a)=0
• C. f(a)=52
• D. f(a)=6

Answer: Option B

Explanation:

5 . abx=a

• A. $\sqrt{a}$
• B. $\sqrt{ab}$
• C. $\frac{\sqrt{a}}{b}$
• D. $\frac{\sqrt{b}}{a}$

Answer: Option B

Explanation:

6 . ax−cy=0 ; ay−cx=a2−c2

• A. x = c, y = a
• B. x = c, y = -a
• C. x = -c, y = a
• D. x = a, y = c

Answer: Option A

Explanation:

7 . x+1x=a

• A. $a^2-3a$
• B. $a^4-3a$
• C. $a^3-3a$
• D. $2a^3-3a$

Answer: Option C

Explanation:

8 . ifx=a+1a and y=a-1a  then x4+y4-2x2y2=?

• A. 4
• B. 8
• C. 16
• D. 20

Answer: Option C

Explanation:

9 . x=a

• A. $f\text{'}\left(a\right)=0$
• B. $f\text{'}\left(a\right)>0$
• C. $f\text{'}\left(a\right)\ne 0$
• D. $f\text{'}\left(a\right)<0$

Answer: Option B

Explanation: