найдите область определения функции. Created by reeter. matematika-ru

{(x+1)(x-4)≥0{(x+1)(x-3)>01) (x+1)(x-4)≥0x=-1 x=4 + - +------ -1 ---------- 4 ----------\\\\\\\\ \\\\\\\\\\\\\ x∈(-∞; -1]U[4; +∞)2) (x+1)(x-3)>0x= -1 x=3 + - +-------- -1 ---------- 3 ------------\\\\\\\\\\\ \\\\\\\\\\\\\x∈(-∞; -1)U(3; +∞){x∈(-∞; -1]U[4; +∞){x∈(-∞; -1)U(3; +∞)x∈(-∞; -1)U[4; +∞)D(y)=(-∞; -1)U[4; +∞) - область определения.Новые вопросы в МатематикаЗадача № 28 Ширина прямоугольника 1 см. Чему равна длина, если периметр 14см? задача28знайдіть область визначення функціїЗнайти 75% від числа 32Знайти значення виразуРозв'язати нерівністьПомогите, пожалуйста! срочнопожалуйста! столбиком 1965*1647Математика! Срочно, 6 класс (фото прикреплено) с 12-14Довжина кроку Чебурашки дорівнює 21 см, а крокодила Гени - 39 см. Яку найменшу однакову відстань має пройти кожний з них, щоб вони обидва зробили по ц…ілому числу кроків?13 630 жовтих, 546 білих і 714 червоних троянд склали букети. 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найдите область определения функции...

reeter @reeter

July 2022 1 4 Report

найдите область определения функции

Answers & Comments

m11m

Verified answer

{(x+1)(x-4)≥0
{(x+1)(x-3)>0

1) (x+1)(x-4)≥0
x=-1 x=4
+ - +
------ -1 ---------- 4 ----------
\\\\\\\\ \\\\\\\\\\\\\
x∈(-∞; -1]U[4; +∞)

2) (x+1)(x-3)>0
x= -1 x=3
+ - +
-------- -1 ---------- 3 ------------
\\\\\\\\\\\ \\\\\\\\\\\\\
x∈(-∞; -1)U(3; +∞)

{x∈(-∞; -1]U[4; +∞)
{x∈(-∞; -1)U(3; +∞)

x∈(-∞; -1)U[4; +∞)
D(y)=(-∞; -1)U[4; +∞) - область определения.