化简:|6.28-2π|=
化简:|6.28-2π|=
100π的得数,完整点!例如:1π=3.14 2π=6.28
化简[cos(a-π)/sin(π-a)]sin(a-π/2)cos(π/2+a)=
化简/3.14-π/=
化简f(a)=sin(π\2-a)*cos(2π-a)*tan(-a+3π)
πr*r=6.28r
化简:cos²(a+π/2)=
三角函数 y+1=sin(2x-0.5π)化简
化简:sin(2π-α)cos(π/2+α)+sin(3π/2-α)cos(π-α)=
化简,f(A)=(sin(π-a)cos(2π-a)tan(-a=π))/sin(π+a)
化简f(x)=(1+√2*cos(2x-π/4))/sin(π/2-x)
f(x)=2SIN^2(x+π\4)-cos(2x+π\6) 化简 谢