ребят, помогите пожалуйста решить эти задания, только не просто ответы а ход решения. Created by Катюшка2002111. algebra-ru

10. А) 4Б) 1В) 311. Зная формулу, вместо n-го члена подставляем искомый. То есть мы имеем: bn = 2*3^3-1=2*3^2=2*9=18.12. Подставляем значения: (√10-(-√7))*(√10+(-√7))-3,(√10+√7)*(√10-√7)-3,(a-b)(a+b)=a²-b²,√10²-√7²-3,10-7-3=0.13. A = 3200+900+900=5000.C=A-0,2A=5000-0,2*5000=5000-1000=4000.14. {2x+5<3x+3; 24-2x>3x-6.2x+5<3x+32x-3x+5-3<0-x+2<0-x<-2x>2;24-2x>3x-624+6-2x-3x>030-5x>0-5x>-305x<30x<6x (2;6). Поскольку 2 не включительно, то найменьшее целое значение это 3.Новые вопросы в АлгебраСРОЧНООООО ПОМОГИТЕза якого значення А системаx-Аy=50,5x-y=2не мае розвязкив⁴√x⁴ + ⁵√x⁵ (x<0)Решите подробно и объясните ход мыслейСРОЧНО ДАЮ 50 БАЛЛОВза якого значення А системаx-Аy=50,5x-y=2не мае розвязкивУпростить выражение:Спростіть вираз!допоможіть будь ласка.2) Решите уравнение: -3x + 1,6 = 2х - 8,4 4x - 24 = 881) Вычислите: a) 1,7 . 16; B) -1,7 -(-2,1) 6) -2,1: (-0,07) r) 1,3 +7,91) Вычислите: a) 1,7 - 16;Решите уравнения(подробно покажите решения и объясните ход мыслей)Решите уравнения. помогите пжппжпжппжпжп ПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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ребят, помогите пожалуйста решить эти задания, только не просто ответы а ход реш...

Катюшка2002111 @Катюшка2002111

August 2022 1 9 Report

ребят, помогите пожалуйста решить эти задания, только не просто ответы а ход решения

Answers & Comments

0Night0 10. А) 4
Б) 1
В) 3

11. Зная формулу, вместо n-го члена подставляем искомый. То есть мы имеем: bn = 2*3^3-1=2*3^2=2*9=18.

12. Подставляем значения: (√10-(-√7))*(√10+(-√7))-3,
(√10+√7)*(√10-√7)-3,
(a-b)(a+b)=a²-b²,
√10²-√7²-3,
10-7-3=0.

13. A = 3200+900+900=5000.
C=A-0,2A=5000-0,2*5000=5000-1000=4000.

14. {2x+5<3x+3; 24-2x>3x-6.
2x+5<3x+3
2x-3x+5-3<0
-x+2<0
-x<-2
x>2;
24-2x>3x-6
24+6-2x-3x>0
30-5x>0
-5x>-30
5x<30
x<6

x (2;6). Поскольку 2 не включительно, то найменьшее целое значение это 3.