Galston189 Galston189

17-03-2015
Mathematics

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

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Panoyin Panoyin

17-03-2015

|cos2x| = 1/2
|0.999390827019096x| = 1/2
0.9993908270196x = 1/2
0.999390827016 0.999390827016
x = 0.5003047721941

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