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Mathematics 21 Online
OpenStudy (anonymous):

4sinxcosx + 2sinx - 2cosx -1 = 0

OpenStudy (anonymous):

am sorry again sin^2 + cos^2 = 1 sin = SQRT(1 - cos^2) is it possible to substitute this above ?

OpenStudy (anonymous):

sorry i can't help u here, too hard for me :(

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