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29 June, 12:50

Find all the solutions to the equation: |cos2x|=1/2

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  1. 29 June, 13:25
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    |cos2x| = 1/2

    |0.999390827019096x| = 1/2

    0.9993908270196x = 1/2

    0.999390827016 0.999390827016

    x = 0.5003047721941
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