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harder 3 Unit Inequalities question
Another method to prove 1/a + 1/b + 1/c >= 9 is to show a+1/a>=2 and similarly a/b+1/(a/b)>=2 (1/a + 1/b + 1/c)(a+b+c)=a/a+a/b+a/c+a/b+b/b+b/c+c/a+b/c+c/c>=3+2+2+2>=9- ihave2shadows
- Post #24
- Forum: Mathematics Extension 2
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