Evaluating required sum using geometric series and integration

SS-303
1/2.2 + 1/4.3 + 1/8.4 + 1/16.5 + - - -
#sequencesandseries #geometricseries #integration #cipher

[@qwertyman123]

2021 putnam a4 has a nice double integral if youre looking for integral problems

[@cipherunity]

I shall check it out