if a+b+c=12 , a^2+b^2+c^3=9 then find the value of abc=? and ab+bc+ca =?
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Answer:
ab+bc+ca= 135
Step by step explanation:
- (a+b+c)²= a²+b²+c²+ab+bc+ca
- 12²=9+ab+bc+ca
- 144-9=ab+bc+ca
- ab+bc+ca= 135
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