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This entry might be better titled, “The Power of Zero to Confuse Us.” (no, not Confucius!) A curious reader (the best kind!) asked: I have a math question: 8/ -m0 + n0 I cannot figure if it is 8 / 0 = 0 or 8/ -2 = -4. Please help me figure this [...] Someone wrote in to ask: 40 * 53 is 125. Why isn’t it 0? On the Math.Com website, problems such as 4 to the zero power times 5 to the third power have an answer of 125 as correct. Shouldn’t the answer be zero. If not, why? Thank you! Professor Homunculus’ response: The [...] Which is greater, x2*y2 or x2+y2? I am thinking about an example from a GRE (graduate record exam) book that was shown to me. I think it was "Which is greater, x2+y2 or (x+y)2? Here is the poop on how to think about examples like that. When in doubt – substitute (if you can) for [...] |
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