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化简sinx-cosx=   .(化简为Acos(ωx+φ)的形式)

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y=Acosω[t-(x-L)/u]  y=Acosω[t-(x+L)/u]  y=Acosω[t+(r+L)/u]  y=Acosω[t+(x-L)/u]  
y=Acosω[t-(x-L)/u]  y=Acosω[t-(x+L)/u]  y=Acosω[t+(x+L)/u]  y=Acosω[t+(x-L)/u]  
y=Acosω[t-(x0-x)/u]+φ0  y=Acosω[t-(x-x0)/u]+φ0  y=Acosωt-[(x0-x)/u]+φ0  y=Acosωt+[(x0-x)/u]+φ0  
y=Acosω[t-(x0-x)/u]+φ0  y=Acosω[t-(x-x0)/u]+φ0  y=Acosωt-[(x0-x)/u]+φ0  y=Acosωt+[(x0-x)/u]+φ0  
y=Acosω[t-(x-L)/u]+φ0  y=Acosω[t-(x/u)]+φ0  y=Acos[t-(x/u)]  y=Acosω[t+(x-L)/u]+φ0  
y=Acosπ[t-(x-5)/4]  y=Acosπ[t-(x+5)/4]  y=Acosπ[t+(x+5)/4]  y=Acosπ[t+(x-5)/4]  
y=Acosω[t-(x-L)/u]  y=Acosω[t-(x+L)/u]  y=Acosω[t+(x+L)/u]  y=Acosω[t+(x-L)/u]  
y=Acos(2πt/T-2πx/λ-1/2π)  y=Acos(2πt/T+2πx/λ+1/2π)  y=Acos(2πt/T+2πx/λ-1/2π)  y=Acos(2πt/T-2πx/λ+1/2π)  
y=Acosπ[t-(x-5)/4]  y=Acosπ[t-(x+5)/4]  y=Acosπ[t+(x+5)/4]  y=Acosπ[t+(x-5)/4]  
可以化简的,其化简顺序为P1→P2→P3  可以化简的,其化简顺序为P3→P1→P2  可以化简的,其化简顺序为P2→P1→P3  不可以化简的,因为P1、P2、P3申请的资源都不能得到满足  
y=Acosπ[t-(x-5)/4]  y=Acosπ[t-(x+5)/4]  y=Acosπ[t+(x+5)/4]  y=Acosπ[t+(x-5)/4]  

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