Question

p/q+q/p=3then what is the value of p^2/q^2+ q^ 2/p^2=?​

Answer 1

Answer:

(p/q + q/p)^2 = 3^2

=>p^2/q^2 + 2(p/q)(q/p) + q^2/p^2 = 9

=> p^2/q^2 + q^2/p^2 = 9-2=7.

So Answer is 7.