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SOL7. The sum of two integers is 76. If one of them is -53, find the other. |
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Answer» sum integers = 76, one =-53,, 76-53=23; (or) 76 -(-53)= 76 + 53 = 129 just occurred to me that I tend to think of integrals primarily as indefinite integrals and sums primarily as definite sums. That is, when I see a definite integral, my first approach at solving it is to find an antiderivative, and only if that doesn't seem promising I'll consider whether there might be a special way to solve it for these special limits; whereas when I see a sum it's usually not the first thing that occurs to me that the terms might be differences of some function. In other words, telescoping a sum seems to be just one particular way among many of evaluating it, whereas |
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