" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
U1 = 3.1-5 = -2
U2 = 3.2-5 = 1
U3 = 3.3-5 = 4
U4 = 3.4-5 = 7
b. Un = 2n³ - n - 2
U1 = 2.1³-1-2 = -1
U2 = 2.2³-2-2 = 12
U3 = 2.3³-3-2 = 49
U4 = 2.4³-4-2 = 122
c. Un = 1/2n(n+2)
U1 = 1/2.1(1+2) = 3/2 = 1,5
U2 = 1/2.2(2+2) = 4
U3 = 1/2.3(3+2) = 7,5
U4 = 1/2.4(4+2) = 12
d. Un = (n+1)³ +3
U1 = (1+1)³ +3 = 8+3 = 11
U2 = (2+1)³ +3 = 27+3 = 30
U3 = (3+1)³ +3 = 64+3 = 67
U4 = (4+1)³ + 3 = 125+3 = 128