f(x)=cos2x/cosx+sinx化简
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f(x)=cos2x/cosx+sinx化简f(x)=cos2x/cosx+sinx化简f(x)=cos2x/cosx+sinx化简f(x)=cos2x/(sinx+cosx)=(cos^2x-sin
f(x)=cos2x/cosx+sinx化简
f(x)=cos2x/cosx+sinx化简
f(x)=cos2x/cosx+sinx化简
f(x)=cos2x/(sinx+cosx)
=(cos^2x-sin^2x)/(cosx+sinx)
=(cosx+sinx)(cosx-sinx)/(cosx+sinx)
=cosx-sinx
=√2cos(x+π/4)
f(x)=cos2x/cosx+sinx化简
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设f(sinx)=3-cos2x,则f(cosx)=?
若f(cosx)=cos2x,则f(sinx)=?
f(sinx)=3-cos2x 则f(cosx)=?
若f(sinx)=3-cos2x,则f(cosx)=?
已知f(cosx)=cos2x,则f(sinx)=( )
已知f(sinx)=cos2x,f(cosx)=?
f(sinx)=3-cos2x,则f(cosx)=?（详解
f(sinx)=3-cos2x,则f（cosx）=
若f(sinx)=cos2x,那么f(cosx)等于?
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