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Find minimum and maximum values for f(x) = sinx(1+ cos x) over interval [0, pi].

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Verify Trig Identity (cos x + sin x)/(cos x - sin x) - ( cos x - sin x)/(cos x + sin x) = 2 tan (2x)

When sin x + cos x = 1/2, find the value of sin x cos x.

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the period of the function `f(x)=|(cos)x/2|+|sinx|` is