Abm09967rans
Answered

x²-21+7=0 Denkleminin kökleri x1 ve x2 dir

1/x1 + 1/x2 = ?​

Sagot :

Meroymn1rans

Cevap:

3

Adım adım açıklama:

1/x1 +1/x2= (x1+ x2)/ x1.x2

kökler toplamı 21

kökler çarpımı 7

cevap 21/7=3

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