1 . a-1a=53

• A. 77
• B. $60\sqrt{3}$
• C. $70\sqrt{3}$
• D. 60

Answer: Option A

Explanation:

2 . a-1a=53,a2+1a2

• A. 77
• B. 75
• C. $77\sqrt{3}$
• D. $75\sqrt{3}$

Answer: Option A

Explanation:

3 . a-1a=53

• A. 60√3
• B. 60
• C. 70√3
• D. 77

Answer: Option D

Explanation: