y=3sin(2x+10)+5sin(2x+70)最大值

y=3sin(2x+10)+5sin(2x+70)最大值 matlab中一些新手问题,syms x y;y =ezplot('1/5*(-2-5/(-125+100*sin(x))*(-20*sin(x)+40+10*(-121*sin(x)^2-100*sin(x)+121+100*sin(x)^3)^(1/2))+5/2*sin(x)/(-125+100*sin(x))*(-20*sin(x)+40+10*(-121*sin(x)^2-100*sin(x)+121+100*sin(x)^3)^(1/2)))*cos(x) 3sin^2x+-2sin^2y=2sinx sin^2x+-sin^2y=? y=12sin(2x+π/6)+5sin(π/3-2x)最大值 y=12sin(2x+π/6)+5sin(π/3-2x)的最大值 函数y=sinx+2sin^3 x+3sin^5 x的最小正周期 2 函数y=3sin(x+10度)+5sin(x+70度)的最大值是（ ） 一道三角恒等式证明题请证明sin(x+y)sin(x-y)=sin^2(x)-sin^2(y) y=[sin^2(x)]*[sin^2(x)]求导 sin^2x+cos^2y=1/2 求3sin^2x+sin^2y的最值 化简y=sin^2(x)+2sin(x)cos(x)+3cos^2(x) sinx=1/3,sin(x+y)=1,求sin（2y+x）=? 已知sinx=1/3,sin(x+y)=1,则sin（2y+x)= (cosx)^2-(cosy)^2=1/3求sin(x+y)*sin(x-y). 如果 2sin(x-y)=sin(x+y),证明 tanx= 3 tany siny=1/3,sin(x＋y)=1,求sin(2x＋y) 判断单调性 y=sin(x-π/6) y=sin(-2x+π/3) 求y=sin[sin(x^2)]的导数