Question

find a+b+c = 20 ab + bc+ ca = 125 find a2+ b2+ c2​

Answer 1

Answer:

a

2

+b

2

+c

2

=250 & ab+bc+ac=3, find a+b+c

→ the general formula

(a+b+c)

2

=a

2

+b

2

+c

2

+2(ab+bc+ac)

=250+2(3)

=250+6

∴(a+b+c)

2

=256

∴a+b+c=

256

∴a+b+c=16

Answer 2

Step-by-step explanation:

refer to the attachment for answer.

pls folløw ❤️