and the instruction are to "sum the series." What is expected of me here? I am supposed to make an estimation? Treat it as an alternating series? I'm not sure where to start
and the instruction are to "sum the series." What is expected of me here? I am supposed to make an estimation? Treat it as an alternating series? I'm not sure where to start
Thank you millions! So the sum of the cos function is x, and this function is the same as the cos function except with a different x value?
This makes no sense at all! "cos function" is not a sum and so there is no "sum of a cos function". And x is the argument of the function, not the "sum".