Question

[a/bc+b/ca+c/ab]²- write expanded form​

Answer 1

Answer:

(ab+bc+ca)

2

Formula,

(a+b+c)

2

=a

2

+b

2

+c

2

+2ab+2bc+2ca

⇒(ab+bc+ca)

2

=(ab)

2

+(bc)

2

+(ca)

2

+2(ab×bc)+2(bc×ca)+2(ca×ab)

=a

2

b

2

+b

2

c

2

+c

2

a

2

+2ab

2

c+2abc

2

+2a

2

bc