Question

pls solve 32 and 33 plssss ​

Answer 1

Step-by-step explanation:

a-1/a=3

squaring

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

a^2+1/a^2=11

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

11+3*3=11+9=20

33)

squaring

a^2+b^2+2ab=16

a^2+b^2+2*3=16

a^2+b^2=16-6=10

1/a^2+1/b^2=a^2+b^2/(ab)^2

=10/3^2=10/9