Question

If a-1/a=5 then find the value of a square +1/asquare​

Answer 1

3

Explanation:

Calculating a

• a - 1 / a = 5
• a - 1 = 5a
• 4a = -1
• a = -1/4

Substitute in the 2nd equation

• a² + 1 / a²
• (-1/4)² + 1 / (-1/4)²
• 1/2 + 1 / 1/2
• 3/2 / 1/2
• 3