1 . PA=12, PA∪B=34

• A. $\frac{1}{8}$
• B. $\frac{1}{6}$
• C. $\frac{1}{4}$
• D. $\frac{1}{2}$

Answer: Option C

Explanation:

2 . A=123-4

• A. অভেদক ম্যাট্রিক্স
• B. প্রতিসম ম্যাট্রিক্স
• C. শূন্য ম্যাট্রিক্স
• D. কোনটিই নয়

Answer: Option B

Explanation:

3 . A=1225

• A. $1$
• B. $-1$
• C. $2$
• D. $\frac{-1}{2}$

Answer: Option A

Explanation:

4 . sinA=1213

• A. $\frac{5}{12}$
• B. $\frac{12}{5}$
• C. $\frac{12}{7}$
• D. $\frac{13}{12}$

Answer: Option B

Explanation:

5 . a=12

• A. 0
• B. 1
• C. 2
• D. 3

Answer: Option C

Explanation:

6 . sinA=1213

• A. $\frac{5}{13}$
• B. $\frac{5}{12}$
• C. $\frac{10}{3}$
• D. $\frac{10}{13}$

Answer: Option B

Explanation:

7 . a+b+c=5 ab+bc+ca=12

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer: Option A

Explanation:

8 . A=1234

• A. $8$
• B. $5$
• C. $6$
• D. $7$

Answer: Option B

Explanation:

9 . sinA=1213

• A. $\frac{5}{13}$
• B. $\frac{13}{5}$
• C. $\frac{13}{12}$
• D. $\frac{3}{7}$

Answer: Option B

Explanation: