SOLUTION: geometric series is given: x=5+15+45+... to 20 terms. Calculate the value of x.

Algebra ->  Sequences-and-series -> SOLUTION: geometric series is given: x=5+15+45+... to 20 terms. Calculate the value of x.       Log On

x=5+15+45+... to 20 terms

 and 

The sum formula for n terms is:





Edwin