f(x0+h)?f(x0?h) |
2h |
1 |
2 |
f(x0+h)?f(x0) |
h |
f(x0)?f(x0?h) |
h |
∵f(x)在x0處可導(dǎo),
∴當(dāng)h趨于0時,
f(x0+h)?f(x0?h) |
2h |
1 |
2 |
即當(dāng)h趨于0時,
f(x0+h)?f(x0?h) |
2h |
故選B.
f(x0+h)?f(x0?h) |
2h |
1 |
2 |
f(x0+h)?f(x0?h) |
2h |
1 |
2 |
f(x0+h)?f(x0) |
h |
f(x0)?f(x0?h) |
h |
f(x0+h)?f(x0?h) |
2h |
1 |
2 |
f(x0+h)?f(x0?h) |
2h |