Answered

f(x+1) - f(x) =x
f(1) =60
olduğuna göre f(60) =?

Sagot :

Cevap:1830

Adım adım açıklama:

X=1 f(2)-f(1)=1

X=2 f(3)-f(2)=2

X=3 f(4)-f(3)=3

X=4 f(5)-f(4)=4

... ..... ... .....

X=59 f(60)-f(59)=59

sayilari boyle alt alta yazdigimizda ve topladigimizda aslinda sayilar birbirlerini götürüyor ve elimizde sadece f(60)-f(1)=59+....+4+3+2+1 kaliyor.

 f(60)-60 = 59.60/2

 f(60)=1830

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