sin[(π/3)-2x]
=cos[π/2-(π/3-2x)]
=cos(2x+π/6)
=cos[2(x+π/12)]
即x换成x+π/12
左加右减
所以是向左π/12
三角函数图形平移
三角函数图形平移
为了得到函数y=sin[(π/3)-2x]的图象,可以将函数y=cos2x的图象_________
为了得到函数y=sin[(π/3)-2x]的图象,可以将函数y=cos2x的图象_________
数学人气:697 ℃时间:2020-05-20 19:36:38
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