Question

2 stands for squre
a2 +b2+c2=250and ab+bc+ca=3
find a+b+c

Answer 1

Answer:

(a + b + c)² - 2 (ab + bc + ca)

Step-by-step explanation:

Answer 2

Answer:

16

Step-by-step explanation:

a² + b² + c² = (a + b + c)² - 2 (ab + bc + ca)

250 = (a + b + c)² - 2(3)

250+6= (a + b + c)²

256= (a + b + c)²

√256 = (a + b + c)

16 = (a + b + c)

please mark as brilliant answer