x=0:0.01:
若1+x+x*x+x*x*x=0,求x+x*x+x*x*x+.+x(2000次幂)
matlab画图x = 0:0.01:10; y =sin(2*x)*cos(100*x)/(2*x); plot(x,
f(x)={x^2+x(x≤0),-x^2+x(x>0)
f x ={x(1-x)x≥0,x(1+x)x
提取公因式:已知x*x-5x+1=0 求x*x*x-4x*x-4x-1
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
A={X|X>0或X
y=x^x(x>0)求导
y=(x+4)(x+9)/x (x>0)
解方程 x*x*x + 2*x -19 =0
(x+2)(x-3)(x-6)(x-1)=0
5/x²+x-1/x²-x=0