x3 +3x2h + 3xh2 + h3 − x3 | ||
= limh→0 | = limh→0(3x2 + 3hx + h2) = 3x2 | |
h |
f(x+h)−f(x) | ||
def f'=lim | ||
h |
(x+h)3−x3 | x3+3x2h+3xh2+h3−x3 | 3x2h+3xh2+h3 | ||||
lim | = lim | =lim | = | |||
h | h | h |
5^2 | 52 |
2^{10} | 210 |
a_2 | a2 |
a_{25} | a25 |
p{2} | √2 |
p{81} | √81 |
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