(sin t) / ( 1-cos t)=

(sin t) / ( 1-cos t)= matlab中怎么对下面的程序进行二维插值并画出三维视图呢?[x,y]=meshgrid(-2:1:2);t=2;Z=[(sin(t))^3 t^2 sin(t) cos(t) (sin(t))^2;t^2 sin(t) (cos(t))^4 cos(t) (sin(t))^2;t sin(t) cos(t) t^2 (sin(t))^2;sin(t) (cos(t))^3 t^2 (sin(t))^2 求 y=cos t/(1-sin t)的导数 1/1-sin t cos(cos(t))-cos(sin(t)) 周期怎么求 matlab怎么画出三维曲线?t=(0:0.01:1)*pix=25*cos(t)y=(-60+25*sin(t))*(14.82-111*25*sin(t)+1250*sin(t)*sin(t)+1511.18*sin(t)-1511.18)/((50-50*sin(t))*sqrtm(900-61*25*sin(t)+625*sin(t)*sin(t)+1511.18sin(t)))-25sin(t)+sqrtm(1100)z=50-25*sqrtm((360 急证：sin t + cos t - 2/[1+tan^2 (t/2) ] tan t/2怎么算出等于sin t /（1+cos t）. sin t/1-cos t=cot t怎么推导求助微积分上的一个推导? x=tan(t) sin(t)-cos(t)=? Matlab程序：错误在哪里建立函数文件fun5.mfunction dy=fun5(t,y)dy=[(-5*sin(t)*(5*cos(t)-y(1))+5*cos(t)*(5*sin(t)-y(2)))*(5*cos(t)-y(1))./((5*cos(t)-y(1))^2+(5*sin(t)-y(2))^2),(-5*sin(t)*(5*cos(t)-y(1))+5*cos(t)*(5*sin(t)-y(2)))*(5*sin(t)- cos^3+sin^3 求化简设t=cos+sin sin(5t-75)等于cos多少 高中数学f(t)=1+Cos(2000*Pi*t)+Sin(4000*Pi*t)f(t)=1+Cos(2000*Pi*t)+Sin(4000*Pi*t) Pi为3.1415926 f(t)的频率【或周期】怎么求啊 求解matlab绘制参数函数y=50*cos(t)-40*cos(t+7.5*((1-cos(3.1415926*t/55))-0.25*(1-cos(2*3.1415926*t/55))+36.86);x=50*sin(t)-40*sin(t+7.5*((1-cos(3.1415926*t/55))-0.25*(1-cos(2*3.1415926*t/55))+36.86);就是绘制这个方程的函数图象,t是 参数方程:x=1+cosθ*t,y=sinθ*t,求普通方程, 求sin^2(t)*cos^4(t)dt的不定积分 -ωsinωt+ωcosωt怎么求导 设tan(θ/2)=t,求证：sinθ=2t/(1+t^2),cosθ=(1-t^2)/(1+t^2),tanθ=2t/(11t^2)设tan(θ/2)=t,求证：sinθ=2t/(1+t^2),cosθ=(1-t^2)/(1+t^2),tanθ=2t/(1-t^2)