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OpenStudy (itsonlycdeee):
Rewrite using Double Angle Formulas [cos(2A)=cos^2A-sin^2A=1-2sin^2A=2cos^2A-1] & Power Reduction Formulas: [cos^2x=(1+cos(2x)/2)] to form an equation for a graph: y = 6cos^2x-3 y = 1-2sin^2(2x)
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OpenStudy (anonymous):
I don't understand is this a system of equations?
OpenStudy (anonymous):
what exactly do you want
OpenStudy (anonymous):
never mind, why do you need to simplify the expression to graph it.
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