we cancel (cos x - sin x) in the numerator and denominator to get 1/(cos x) Why is it -1?
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Then after dividing out this factor, the -1 is left in the numerator.
Originally Posted by kingsolomonsgrave we cancel (cos x - sin x) in the numerator and denominator to get 1/(cos x) Why is it -1? Algebra Just factor a -1 out of the numerator
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