• A. $\mathrm{\pi }$
• B. $\sqrt{2}$
• C. $\sqrt{11}$
• D. সবগুলো

Answer: Option D

Explanation:

• A. $a+b+c$
• B. $\frac{a+b-c}{a-b+c}$
• C. $\frac{a-b+c}{a+b-c}$
• D. $\frac{a+b-c}{a+b+c}$

Answer: Option B

Explanation:

• A. $\left(1,3\right)$
• B. $\left(1,5\right)$
• C. $\left(-3,3\right)$
• D. $\left(-1,1\right)$

Answer: Option D

Explanation:

• A. ১০%
• B. ২৫%
• C. ১৫%
• D. ৩০%

Answer: Option B

Explanation:

• A. $\sqrt{48}$
• B. $0$
• C. $\sqrt{6}$
• D. $\sqrt{24}$

Answer: Option D

Explanation:

• A. ১৫০
• B. ৭৫
• C. ৪৫
• D. ১৫

Answer: Option B

Explanation:

• A. 25%
• B. 28%
• C. 30%
• D. 32%

Answer: Option C

Explanation:

• 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:

• A. $3N$
• B. $\sqrt{11}N$
• C. $\sqrt{41}N$
• D. $1N$

Answer: Option C

Explanation:

• A. ১২
• B. ৯
• C. ৭
• D. ৬

Answer: Option A

Explanation:

• A. $\frac{১}{২৫}$
• B. $\frac{৫}{২০}$
• C. $\frac{৯}{২৫}$
• D. $\frac{৩}{২০}$

Answer: Option C

Explanation:

• A. $30°$
• B. $45°$
• C. $75°$
• D. $105°$

Answer: Option C

Explanation:

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

Answer: Option C

Explanation:

• A. ৭১
• B. ৪১
• C. ৩১
• D. ৩৯

Answer: Option C

Explanation:

• A. $49°$
• B. $62°$
• C. $139°$
• D. $82°$

Answer: Option D

Explanation: