Question

If a+b+c=3 square root 3
And a^2+b^2+c^2=27.
Prove that ab+bc+ca=0


Pls ans quickly

Answer 1

Answer:

hope my answer to your question in the above attachment helps you

Answer 2

Answer:

Step-by-step explanation:

As ( a+b+c )^2 =a^2+b^2+c^2 + 2ab+2bc+2ca

Then, ATQ , (3√3)^2 = 27+ 2( ba+ cb+ ca).

27=27+2(ba+cb+ac)

0=2(ab+cb+ca)

Therefore, ab+ bc+ ca=0

Proved......