Math, asked by shaikreshma15, 1 year ago

If a+b+c=9andab+bc+ca=26find a²+b²+c²

Answers

Answered by Anonymous
2
29..............................

shaikreshma15: how
Anonymous: Ananya solved it
Anonymous: :-)
Anonymous: Thanks sis
Anonymous: your most welcome ^_^
Anonymous: No probs
shaikreshma15: who are you
shaikreshma15: Thank you sister
Answered by Anonymous
11
your ans

apply the formula

(a+b+c)2=a2+b2+c2+2(Ab+BC+CA)

(9)2=a2+b2+c2+2(26)

81=a2+b2+c2+52

81-52=a2+b2+c2

29=a2+b2+c2

shaikreshma15: thank you sister
Anonymous: ^_^
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