ПОМОГИТЕ РЕШИТЬ СИСТЕМУ! 1). 3^1+log3 (x^2-y^2)=15 2). log2 (x^2-y^2)-log2 (x+y)=0. Created by Lissoff. algebra-ru

1) 3^1 * 3^log3_(x^2 - y^2) = 15;3 *(x^2 - y^2) = 15;x^2 - y^2 = 5.2) log2_ (x^2- y^2) / (x + y) = 0;log 2_(x+y)(x-y) / (x+y) = 0;log2_(x-y) = 0;log2_(x-y) = log2_1;x - y = 1; x^2 - y^2 = 5;(x-y)(x+y) = 5;1 * ( x + y) = 5;x + y = 5. {x- y = 1; x + y = 5; 2x = 6; x = 3. y = 5 - x = 5 - 3 = 2.Ответ х = 3; у = 2 Новые вопросы в АлгебраПомогите с интеграломПомогите с интегралом пожалуйста Знайдіть розв’язок нерівності: 3х − 6 < 3.Довести нерівність 3x/(9x²+1)≤1/28. Знайдіть всі значення х, при яких має зміст вираз:1/(x + 1)1. Розв'язати нерівність розв'язками нерівності. 1/(2(x + 1) - 1/2x <= 1 У вiдповiдь записати суму всіх цілих чисел, які не2. Розв'язати нерівніс…ть розв'язками нерівності. 1/x² - 3x + 2 <= 1/2 У відповідь записати добуток усіх цілих чисел, які не3. Розв'язати нерівність розв'язок. x - 8/x² - 5x + 4 > 2/x + 1. У відповідь записати найменший додатний цілиAB=√(Xb-Xa)2+(Yb-Ya)2 как читается формулаУ шкільній їдальні учнів можна розсадити по чотири за столом. Яку найменшу кількість столівзаймуть учні першого класу, якщо у ньому навчається 25 учн…ів?Пожалуйста помогите!Х + 5/12= 11/12ПлизПожалуйста помогите!Х + 5/12= 11/12Срочно ооооПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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ПОМОГИТЕ РЕШИТЬ СИСТЕМУ! 1). 3^1+log3 (x^2-y^2)=15 2). log2 (x^2-y^2)-log2 (x+y)...

Lissoff @Lissoff

July 2022 1 5 Report

ПОМОГИТЕ РЕШИТЬ СИСТЕМУ!
1). 3^1+log3 (x^2-y^2)=15
2). log2 (x^2-y^2)-log2 (x+y)=0

Answers & Comments

uekmyfhfp 1) 3^1 * 3^log3_(x^2 - y^2) = 15;
3 *(x^2 - y^2) = 15;
x^2 - y^2 = 5.

2) log2_ (x^2- y^2) / (x + y) = 0;
log 2_(x+y)(x-y) / (x+y) = 0;
log2_(x-y) = 0;
log2_(x-y) = log2_1;
x - y = 1;
x^2 - y^2 = 5;
(x-y)(x+y) = 5;
1 * ( x + y) = 5;
x + y = 5.
{x- y = 1;
x + y = 5; 2x = 6;
x = 3. y = 5 - x = 5 - 3 = 2.
Ответ х = 3; у = 2