形如SIN^2(X) + SIN2X + COS^2X 化简...y=sin^2 x+sin 2x 3cos^2 x6sin^2x+sin x cos x-2cos^ x=0求sin(2x+60)的值送分了。怎么没人做呢

Sin2x=sin^2x sin2x-x 是(sin2x)-x还是sin(2x-x)? 化简f(x)=sin2x-2sin^2x*sin2x sin2x-2sin平方x*sin2x的奇偶性和周期? sin^2x+sin2x 最小正周期 sin2x=sin(x/2) 0 y=sin2x+sin(2x+π/3)/cos2x 的最小正周期如题 形如SIN^2(X) + SIN2X + COS^2X 化简...y=sin^2 x+sin 2x 3cos^2 x6sin^2x+sin x cos x-2cos^ x=0求sin(2x+60)的值送分了。怎么没人做呢 证明 2sin(π+x)cos(π-x)=sin2x ∫1-sin2x/sin^2x-x dx求不定积分 f(x)=sin2x+2sin(x+45°)最大值 y=根号2sin2x变换到sin^2x+sin2x+2cos^2x f(x)=sin2x-2sin^2x*sin2x最小正周期等于多少? 为什么sin2x+cos2x=2sin(2x+π/4) sin2x + 2sin^2x=sinx + cosx 三角方程求解 化简(sin2x+2sin^2 x)/1-tanx (2sin^2X+sin2X)/(1+tanX)怎么化简? 已知函数fx=2sin^2x+sin2x.