f(x)=cos^X+sinXcosX怎么化简?
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f(x)=cos^X+sinXcosX怎么化简?
f(x)=cos^X+sinXcosX怎么化简?
f(x)=cos^X+sinXcosX怎么化简?
=(1+cos2x)/2+sin2x/2=根号2/2 sin(2x+pi/4)+1/2
f(x)=cos^X+sinXcosX=(cos2x+1)/2+1/2sin2x
=√2/4(sinπ/4cos2X+sin2Xcosπ/4)+1/2
=√2/4sin(2X+π/4)+1/2
f(x)=cos^X+sinXcosX怎么化简?
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