Question

$if \: \frac{a}{b} + \frac{b}{a } = 2 \: then \: the \: value \: of \: {( \frac{a}{b} )}^{10} - ( { \frac{b}{a} })^{10} is$

Answer 1

hey, mate here is ur Ans

{(a/b)+(b/a)}²={(a/b)-(b/a)}²+4

4-4=(a/b)-(b/a)
=>. a/b=b/a

(a/b)^10-(b/a)^10=0