StrangeMetalGirl StrangeMetalGirl

21-11-2016
Mathematics

contestada

please explain me how to solve it
cos2x+cos4x ≥0

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Аноним Аноним

21-11-2016

2x + 4x will always be larger or equal to 0.
if x= 0 than it will be equal to 0.
Does this help at all?

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