Deret aritmetika
[tex]sn = \frac{n}{2} (2a + (n - 1)b) \\ \\ s20 = \frac{20}{2} (2.17 + (20 - 1)3) \\ \\ s20 = 10(34 + 57) \\ \\ s20 = 10(91) \\ \\ s20 = 910 \: (A)[/tex]
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Deret aritmetika
[tex]sn = \frac{n}{2} (2a + (n - 1)b) \\ \\ s20 = \frac{20}{2} (2.17 + (20 - 1)3) \\ \\ s20 = 10(34 + 57) \\ \\ s20 = 10(91) \\ \\ s20 = 910 \: (A)[/tex]