Question

if a=3-2sqrt2,find the value of a^2-1/a^2​

Answer 1

given,

a. = 3-2²

=3-4= 1

so, a² = 1² =1

and 1/a² =1/1² =1

so,

a²-1/a²

=1-1

=0

Answer 2

Step-by-step explanation:

Refer to the attachment for the answer