Question

Fie ecuatia x²+4x+1=0 cu radacinile x1 şi x2 . Să se arate ca 1/x1 + 1/x2 apartine Z​

Answer 1

Răspuns:

0425 .0475 .0525 .0575 .0625 .0675 .0725 .0775 .0825 .0875 .0925 .1000 .1100 .1200 .1300 .1400 .1500 .1600 .1700 .1800 .1900 .2000 .2100 .2200 .2300 .2400 .2500 .2600 .2700 .2800 .2900 .3000 .3100 .3200 .3300 .3400 .3500 .3650 .3850 .4050 .4250 .4450 .4650 .4850 2020 05 14 04 40 86 84 62 33 19 23 10 36 42 48 45 14 34 26 40 57 72 39 18 49 24 30 19 9 33 57 30 20 26 25 41 39 18 31 23 10 20 26 33 18 20 46 21 33 9 15 36 2020 05 14 05 40 88 46 60 45 24 8 12 21 26 29 20 17 37 26 20 80 56 27 54 45 48 24 42 26 52 20 32 42 16 26 16 27 27 52 38 34 29 15 51 45 53 38 15 33 11 35 19 2020 05 14 06 40 95 76 65 40 15 32 23 42 15 23 33 16 59 12 62 54 68 34 42 13 18 49 57 41 40 28 5 14 19 54 42 49 43