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OpenStudy (loser66):
How many solutions are there on \(sec (x) = e^{-x^2}\) Please, help
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OpenStudy (loser66):
Another confusing; \(x^2+4x-15=0\) have 2 solutions, but if we apply Decartes rule, we have only 1 real solution. What is wrong? |dw:1438396954345:dw|
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