1. 绘制f在[0,1]上的图像的正确语句为( )
A: solve(f,[0,1])
B: fplot(f)
C: fplot(f,[0,1])
D: plot(f,[0,1])
A: solve(f,[0,1])
B: fplot(f)
C: fplot(f,[0,1])
D: plot(f,[0,1])
举一反三
- 4.下列函数中,在区间$(0,1)$内必有零点的是()。 A: $f(x)\in C(0,1)$,且$f(0)f(1)\lt 0$ B: $f(x)\in C(0,1)$,且$f(\frac{1}{2})f(1)\lt 0$ C: $f(x)\in C(0,1)$,且$f(0)f(\frac{1}{2})\lt 0$ D: $f(x)\in C(0,1)$,且$f(\frac{1}{4})f(\frac{1}{2})\lt 0$
- 设f(x)在【0,1】上连续,(0,1)可导.f(0)=0,f(1)=1.证明:存在C属于(0,1)使f(c)=1-c
- 设函数f(x)在[0,1]上连续,在(0,1)上可导,且f'(x)>0,则A.()f(0)<0()B.()f(1)>0()C.()f(1)>f(0)()D.()f(1)
- 设函数f(x)在[0,1]上连续,在(0,1)内可导,且f"(x)<0,则____ A: f(0)<0 B: f(1)>0 C: f(1)>f(0) D: f(1)<f(0)
- 设f(x)在[0,1]上二阶可导,且f(0)=f"(0)=f(1)=f"(1)=0.证明:方程f"(x)=f(x)=0在(0,1)内有根.