(2sin^x+sin2x)/(1＋tanx)化简

(2sin^x+sin2x)/(1＋tanx)化简 Sin2x=sin^2x sin2x-x 是(sin2x)-x还是sin(2x-x)? ∫1-sin2x/sin^2x-x dx求不定积分 化简f(x)=sin2x-2sin^2x*sin2x 化简(sin2x+2sin^2 x)/1-tanx (2sin^2X+sin2X)/(1+tanX)怎么化简? y=sin2x+2sin^2 x-1 求化简 tanx=1/2,sin2x+sin^2x 求导数：y=1+sin＾2x/sin2x 证 sin2x * cos3x =(1/2) * [sin5x + sin(-x)] 2sin^2x+sin2x为什么会变成1-cos2x+sin2x 怎样算Sin2X-2Sin^2X =Sin2X+COS2X-1 sin2x-2sin平方x*sin2x的奇偶性和周期? 为什么f(x)=sin2x-2sin²x=sin2x+（1-2sin²x）-1=sin2x+cos2x-1? tanx=2,那2sin平方x＋1除以sin2x等于多少 sin^2x+sin2x 最小正周期 sin2x=sin(x/2) 0