解方程式4sin^2x-sinxcosx-3cos^2x=0

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解方程式4sin^2x-sinxcosx-3cos^2x=0
y=(cos^2x)/(sinxcosx-sin^2x),(0

y=(cos^2x)/(sinxcosx-sin^2x),(0y=(cos^2x)/(sinxcosx-sin^2x),(0y=(cos^2x)/(sinxcosx-sin^2x),(0这么简单啊分子

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