joshcharo4 joshcharo4

30-06-2017
Mathematics

contestada

sin2xcosx + cos2xsinx=-1/2

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RickyChen RickyChen

30-06-2017

If you know the rule,

The left side is equal to sin(3x), which is equal to -1/2

So x = (12pi*n-pi) / 18, where n is any integer.

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