Question

If a + b + c = 15 and ab + bc + ca = 30, find a^2 + b^2 + c^2.

Answer 1

Answer:

It is correct ans.

please like and follow.

Answer 2

Answer:

(a+b+c)^2 = (15)^2

a^2+b^2+c^2+ab+bc+ac = 225

a^2+b^2+c^2 = 225 - 30 = 195

hope it help u