document.write( "Question 614130: What is the sum of the finite arithmetic series? \n" ); document.write( "
\n" ); document.write( "Hi, \n" ); document.write( "What is the sum of the finite arithmetic series?\n" ); document.write( "Knowing the 1st and nth Term:\n" ); document.write( "\n" ); document.write( "In general:\n" ); document.write( "\n" ); document.write( "