C2: Sum of a Geometric Sequence
- Created by: Grasshopper
- Created on: 16-02-14 13:44
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Prove:
Sn = n/2(2a + (n-1)d)
.
.
Sn = a + (a+d) + (a+2d) +... (a+(n-1)d)
+ Sn…
Prove:
Sn = n/2(2a + (n-1)d)
.
.
Sn = a + (a+d) + (a+2d) +... (a+(n-1)d)
+ Sn…
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