(tgx+1)/(1-tgx)>=1 распишите как решать плиз. Created by katiequeen2001. matematika-ru

(tgx+1)/(1-tgx)≥1(tgx+1)/(1-tgx)-1≥0(tgx+1-1+tgx)/(1-tgx)≥02tgx/(1-tgx)≥01){tgx≥0⇒πk≤x<π/2+πk,k∈z{1-tgx>0⇒tgx<1⇒-π/2+πk<x<π/4+πkx∈[πk;π/4+πk),k∈z2){tgx≤0{1-tgx<0⇒tgx>1нет решенияОтвет x∈[πk;π/4+πk),k∈zНовые вопросы в МатематикаСрочно помогите решитьПомогите пожалуйста)Помогите пожалуйста с решением( обьяснением)Найдите значение выражения если b=1///////////////////////////////Решите уравнениеЄ чотири картки з цифрами: 2, 0, 1, 6. Для кожного з чисел від 1 до 9 можна з цих карток скласти чотиризначне число, яке кратно обране однозначне. А в…якому році таке буде наступного разу?Угол при вершине противолежащей основанию равнобедренного треугольника равен 150. Боковая сторона равна 25. Найдите площадь треугольникаСкладіть рівняння кола з центром в точці (- 4; 5), радіус якого дорівнює корінь з 3(В закрепе)Сравните:1. записати рівняння прямої що проходить через точку А(4;-1) та має нормальний вектор N(4;3)2. Записати рівняння прямої що проходить через точку А(-1…5;2) та має напрямний вектор s(14;3)ПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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(1-tgx)>=1 распишите как решать плиз...

katiequeen2001 @katiequeen2001

July 2022 1 9 Report

(tgx+1)/(1-tgx)>=1 распишите как решать плиз

Answers & Comments

sedinalana (tgx+1)/(1-tgx)≥1
(tgx+1)/(1-tgx)-1≥0
(tgx+1-1+tgx)/(1-tgx)≥0
2tgx/(1-tgx)≥0
1){tgx≥0⇒πk≤x<π/2+πk,k∈z
{1-tgx>0⇒tgx<1⇒-π/2+πk<x<π/4+πk
x∈[πk;π/4+πk),k∈z
2){tgx≤0
{1-tgx<0⇒tgx>1
нет решения
Ответ x∈[πk;π/4+πk),k∈z