If a+b+c=9, ab+bc+ca=26, find the value of a²+b²+c².
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Step-by-step explanation:
a+b+c=9
squaring both side
(a+b+c)^2=(9)^2
a^2 +b^2+c^2 +2( ab +bc+ ca) = 81
a^2 +b^2+c^2+2(26)= 81
a^2 +b^2+c^2+ 52= 81
a^2 +b^2+c^2= 81 - 52
a^2 +b^2+c^2= 29
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Answer:
Deoxyribonucleic Acid for ur Frist question
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