Obliczasz różnicę ciągu
a2-a1 = r
9-4 = 5
r = 5
an = a1+(n-1)*r
an = 4+(n-1)*5
an = 4+5n-5
an = 5n-1
np.
a1 = 5*1-1 = 5-1 = 4
a2 = 5*2-1 = 10-1 = 0
a3 = 5*3-1 = 15-1 = 14
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Obliczasz różnicę ciągu
a2-a1 = r
9-4 = 5
r = 5
an = a1+(n-1)*r
an = 4+(n-1)*5
an = 4+5n-5
an = 5n-1
np.
a1 = 5*1-1 = 5-1 = 4
a2 = 5*2-1 = 10-1 = 0
a3 = 5*3-1 = 15-1 = 14