Question

urgent va rog!!! UNA DIN ELE MACAR!!! ​

Answer 1

Răspuns:

1) 3|c|/4+1/4=c+2

3|c|+1=4c+8

3|c|=4c+7

|c|=(4c+7)/3

|c|>0---->(4c+7)/3>0---->4c+7>0---->4c>-7--->c>-7/4--->c>-1,75

Dacă c aparține Z---->c=-1

2) a=

$\sqrt{52} + \sqrt{208} = 2 \sqrt{13} + 4 \sqrt{13} = 6 \sqrt{13} = \sqrt{468}$

a-19>0---->a>19

$\sqrt{468} > \sqrt{361}$

468>361 (Adevărat)