函数y=sin2xcos2x怎么化成1/2 sin4x,
1个回答
根据2倍角公式:sin(2x)=2sinxcosx
y=sin2xcos2x=1/2(2sin2xcos2x)=1/2sin4x
相关问题
1、化简函数f(x)=(sin^4 x+cos^4 x+sin^2 xcos^2 x)/(2-sin2x)
化简cos^4x+sin^2xcos^2x+sin^2x
(sin2xcos2x)/2怎么就变成1/2 sin4x,
化y=sin^22x+2√3sin2xcos2x+3cos^22x
函数y=sin(2x−5)x的导函数为y=2xcos(2x−5)−sin(2x−5)x2y=2xcos(2x−5)−si
高中三角函数化简问题求化简函数f(x)=(sin4x+cos4x+sin2xcos2x)/(2-2sinxcosx)si
化简cos2xcos(x+y)-sin2xsin(x+y)=
(1-(sin^4x-sin^2xcos^2x+cos^4x)/sin^2x +3sin^2x
函数y=2sin2xcos2x是( )
函数y=2sin2xcos2x是( )