" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a1=3
a13=-5,4
=-5,4=3+ 12r
r=-0,7
a12= a1+11r
a12= -4,7
---
b) a1=? a15=?
a31=8
r=0,1
8=a1+ 30 r
a1=5
a15=a1+ 14r
a15=5+1,4
a15=6,4
----
c)
r=?
a1=?
100=a1+99r
104=a1+101r
-4=-2r
r=2
a1= 100-198 =-98
d)r=?
a1=?
-8=a1+4r
-2=a1+8r
6=4r
r=1,5
-2=a1+12
a1=-14