Question

if a-1/a=3 then a^2 -1/a^2 =​

Answer 1

Step-by-step explanation:

a-1/a=3

a²+1/a²=11

a+1/a=√13

a²-1/a²=(a+1/a)(a-1/a)

=(3)(√13)

=3√13 answer