" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
b = 9 (U2 - U1)
Un = a + (n-1)b
= 2 + (n-1)9
= 2 + 9n - 9
= 9n - 7
U10 = 9(10) - 7
= 90 - 7
= 83