若sin(3π/2-2x)=3/5,则tan^2 x等于?

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 设sin(x)-sin(y)=1/3,T=cos(y)^2+2sin(x),则T的取值范围 已知函数f(x)=sin(x+π/3)sin(x+π/2)的最小正周期T=? 已知函数f(x)=sin(x+π/3)sin(x+π/2)的最小正周期T=? 若tanx=2,则2sin平方x-3sin（π-x）sin（π/2-x）= 函数y=sin(x+π/3）sin(x+π/2)的最小正周期T=? 函数y=sin(x+π/3)×sin(x+π/2)的最小正周期T=多少 函数y=sin(x+π/3)sin(x+π/2)的最小正周期T=? 函数f(x)=sin(2x+t) (-π 物体做阻尼运动,运动规律为x=e^(-2t)*sin(3t+π/6,则物体在时刻t=0时,,. 已知sin(x+π/6)=1/3,求sin(5π/6-x)+sin^2(π/3-x) 已知sin(x+π/6)=1/4,求sin(5π/6-x)+sin^2(π/3-x) 已知当x趋向于0时,∫(x,-x)(sin(t)+sin(t^2))d(t)与a(x^k)是等价无穷小,则 （ ）A.a=3,k=3/2 B.a=2/3,k=3C.a=3,k=2/3D.a=3/2,k=3∫(x,-x)(sin(t)+sin(t^2))d(t)中(x,-x)顺序弄反了，应该是(-x,x) 若sin x/2 - cos x/2 = 1/3,则sin x=? 若sin x/2-cos x/2=1/3,则sin x= 函数y=sin(π/3-x/2）的最小正周期T=? 函数y=3sin(2x+π/4）+1求周期T s = 2*sin(x)-sin(2*x)+2/3*sin(3*x)-1/2*sin(4*x)+2/5*sin(5*x)用matlab画图,求教啊