SOLUTION: Express 1-1/3+1/9-1/27...+(-1)^n(1/3^n)+... in scientific notation

Question 1104777: Express 1-1/3+1/9-1/27...+(-1)^n(1/3^n)+... in scientific notation
Answer by greenestamps(13215) (Show Source): You can put this solution on YOUR website!

This is an elementary infinite geometric series; the sum is where a is the first term and r is the common ratio between terms.

The sum is 3/4; it seems strange you would be asked to write that in scientific notation....

3/4 = 0.75 = 7.5x10^-1
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