2007 iTest Problems/Problem 5
Problem
Compute the sum of all twenty-one terms of the geometric series
.
Solution
Those are powers of 2. So it would make sense to multiply the series by 2:
Subtracting,
Compute the sum of all twenty-one terms of the geometric series
.
Those are powers of 2. So it would make sense to multiply the series by 2:
Subtracting,
Something appears to not have loaded correctly.