Sunday, 21 February 2016

algebra precalculus - The number of solutions of the equation |cotx|=cotx+frac1sinx where $0

|tanx|=sinx1+cosx


|tanx|=tan(x2)
then x can assume only two values 0,2π (at least that’s what I think). But since it doesn’t fit in the given interval, number of solutions should be zero, but the answer is 2. How should I correct it?

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