Question

If a2+1/b2=23 then a+1/b=?

Answer 1

Answer:

21

Step-by-step explanation:

A2+1/B2=23

A2/B2=23-1

A2/B2=22

a/b=22×2/2

a/b=22

so,

a+1/b=22

a/b=22-1

a/b=21

=21

Thank you