化简cos2(x)/1+sin(x) +sin2(x)/1+cos(x)
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化简cos2(x)/1+sin(x)+sin2(x)/1+cos(x)化简cos2(x)/1+sin(x)+sin2(x)/1+cos(x)化简cos2(x)/1+sin(x)+sin2(x)/1+c
化简cos2(x)/1+sin(x) +sin2(x)/1+cos(x)
化简cos2(x)/1+sin(x) +sin2(x)/1+cos(x)
化简cos2(x)/1+sin(x) +sin2(x)/1+cos(x)
原式=[1-(sinx)^2]/(1+sinx)+[1-(cosx)^2]/(1+cosx)
=(1-sinx)+(1-cosx)
=2-sinx-cosx
化简cos2(x)/1+sin(x) +sin2(x)/1+cos(x)
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