Question

expand each of the following using suitable identity (a/b+b/c+c/a)^2​

Answer 1

Answer:

(a/b + b/c + c/a)²

= (a/b)² + (b/c)² + (c/a)² + 2( (a/b)(b/c) + (b/c)(c/a) + (c/a)(a/b) )

= (a/b)² + (b/c)² + (c/a)² + 2[ (a/c) + (b/a) + c/b) ]