, . , .
- , f(x), g(x) - , :
y = C => y ' = 0 y = (Cf)' = C (f)' | |
y = f(x) + g(x) => y ' = f '(x) + g'(x) | |
= (fg)' = f 'g+g'f | |
y = f(x), u = g (y), u = g(f(x)) - , . u' = g(f(x))' = g'(y)*f '(x) | |
y = f(x) x = f -1(y), : (f -1(y))=0 = |
.
f(x) | f '(x) | f(x) | f '(x) |
sin x | cos x | ||
-1 | cos x | sin x | |
lna | tg x | ||
ctg x | |||
log a x | arcsin x | ||
arccos x | |||
arctg x | |||
arcctg x |
:
1. (x = x 1);
2. (x 0 = 1).
, : y = x2 + 3x - 10
y ' = (x2 + 3x 10)' = (x2)'+ (3x)' 10'=2 x 2-1 + 3 x 1-1 - 0 = 2 x 1 + 3 x 0 = 2 x + 3