Question

if a+b+c=5 and ab+bc+ca = 10; find a²+b²+c²​

Answer 1

Answer:

5

Step-by-step explanation:

hope it will help thank you

Answer 2

Answer:

value of a²+b²+c²is 5

Step-by-step explanation:

1)We should use formula

(a+b+c)²=a²+b²+c²+2(ab+bc+ca)

After substituting values we get,

(5)²=a²+b²+c²+20

25-20=5=a²+b²+c²

So, value of a²+b²+c²is 5

HOPE IT HELPS