f(x)=4cos(wx-π/6)sinwx-cos(2wx+π) 化简=4cos(ωx-π/6)sinωx-cos(2ωx+π)=2[sin(ωx-π/6+ωx)-sin(ωx-π/6-ωx)]-cos(2ωx+π)第二部我就看不懂。解释第二部就好
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f(x)=4cos(wx-π/6)sinwx-cos(2wx+π) 化简=4cos(ωx-π/6)sinωx-cos(2ωx+π)=2[sin(ωx-π/6+ωx)-sin(ωx-π/6-ωx)]-cos(2ωx+π)第二部我就看不懂。解释第二部就好
f(x)=4cos(wx-π/6)sinwx-cos(2wx+π) 化简
=4cos(ωx-π/6)sinωx-cos(2ωx+π)
=2[sin(ωx-π/6+ωx)-sin(ωx-π/6-ωx)]-cos(2ωx+π)
第二部我就看不懂。解释第二部就好
f(x)=4cos(wx-π/6)sinwx-cos(2wx+π) 化简=4cos(ωx-π/6)sinωx-cos(2ωx+π)=2[sin(ωx-π/6+ωx)-sin(ωx-π/6-ωx)]-cos(2ωx+π)第二部我就看不懂。解释第二部就好
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f(x)=4cos(wx-π/6)sinwx-cos(2wx+π) 化简=4cos(ωx-π/6)sinωx-cos(2ωx+π)=2[sin(ωx-π/6+ωx)-sin(ωx-π/6-ωx)]-cos(2ωx+π)第二部我就看不懂。解释第二部就好
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