化简[sin(θ-5π)cot(π/2-θ)cos(8π-θ)]/[tan(3π-θ)tan(θ-3/2π)sin(-θ-4π)]
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化简[sin(θ-5π)cot(π/2-θ)cos(8π-θ)]/[tan(3π-θ)tan(θ-3/2π)sin(-θ-4π)]
化简[sin(θ-5π)cot(π/2-θ)cos(8π-θ)]/[tan(3π-θ)tan(θ-3/2π)sin(-θ-4π)]
化简[sin(θ-5π)cot(π/2-θ)cos(8π-θ)]/[tan(3π-θ)tan(θ-3/2π)sin(-θ-4π)]
sin(-θ-4π)=-sinθ
sin(θ-5π)=-sinθ
tan(θ-3/2π)=-tanθ
cot(π/2-θ)=tanθ
cos(8π-θ)=cosθ
tan(3π-θ)=-tanθ
结果自己算.
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