Question

if a≠0 and a-1/a=3 . 1) a²+1/a²=?​

Answer 1

hey mate here is ur answer =

a-1/a=3

a-1=3a

-2a=1

a=-1/2

a^2+1/a^2=(1/4+1)/1/4

=(5/4)/(1/4)

=5.

hope it helps.

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Answer 2

Step-by-step explanation:

Solution :-

(a - 1/a)^2 = 3^2

=> a^2 + 1/a^2 - 2 = 9

Hence, a^ + 1/a^2 = 9 + 2 = 11

Answer) 11