if (a+b+c)=8and(ab+bc+ca)=19find (a2+b2+c2) PLEASE HELP ME
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hey buddy
here is your answer
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mehrin20:
oh iam so sorry I didn't see it
Answered by
1
Answer:
(a2+b2+c2)=8^2-2 ×19=64 -38
= 26
Step-by-step explanation:
(a2+b2+c2)=(a+b+c)^2-2( ab+bc+ca) =8^2-2 ×19=64 -38
= 26
PLS MARK BRAINLEAST AND FOLLOW
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