Question

if a²+b²=5ab, let's show that a²÷b² + b²÷a²=23​

Answer 1

Answer:

Step-by-step explanation:

a2+b2 =5ab then a^2/b^2+ b^3/a^2

a^2+b^2/ab=5

(a/b+b/a)^2 =5^2

a^2/b^2+ b^2/a^2+ 2.a/b.b/a =25

a^2/b^2+ b^2/a^2= 25-2

=23