document.write( "Question 983065: Find the sum : 2 4 6 .... 200. \n" ); document.write( "
Algebra.Com's Answer #603868 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 1+2+3+...+100= n(n+1)/2=100(101)/2=5050 \n" ); document.write( "2+4+6+...+200 is the same thing, only every number is doubled. \n" ); document.write( "5050*2=10,100 \n" ); document.write( " \n" ); document.write( " |