Question

(a+b+c)²=a²+b²+c²+2ab+2bc+2ca​

Answer 1

a+b+c)²=a²+b²+c²+2ab+2bc+2ca It is correct

Answer 2

HI,DEAR

HERE IS YOUR ANSWER

L.H.S= (a+b+c)^2

We know that:

(a+b)^2=a^2+b^2+2ab

So, L.H.S= {(a+b)+c}

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

= a^2+b^2+c^2+2ab+2bc+2ac

R.H.S.

HENCE PROVED

HOPE THIS HELP U