<span>f(x)=√9x + 5 = </span>√9 * x^1/2 + 5 = 3x^1/2 + 5;
f(x)` = 3 * 1/2 * x^(-1/2) =
3/2
= -------;
√x
Раскрыть скобки
х²-11х-2х+22-8х+6х²=
7х²-21х+22
Ответ 2
x(x-6)<0
x=0 x=6
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+ _ +
--------(0)-------------------(6)----------