Question

If a²+1/a², find the value of (a+1/a)

Answer 1

Step-by-step explanation:

(a – (1/a))2 = a2 + (1/a2 ) – 2

⇒ (a – (1/a))2 = 11 -2

⇒ (a – (1/a))2 = 9

⇒ a – (1/a) =

⇒ a – (1/a) = 3