Question

if a-1/a=5find value of a²+1/a²
​

Answer 1

Answer:

27

Step-by-step explanation:

a - 1/a = 5

( a - 1/a ) ² = 5² [ square both ]

a ² - 2× a × 1/a + (1/a)² = 25

a² + 1/a² = 25 + 2

a² + 1/a² = 27

Please follow me