if the sum of the first n positive integers is s , what is the sum of the first n positive integers divisible by 4 , in terms of s ?
"answer is e given sum of 1 2 3 . . . . . n = s sum of 4 , 8 , 12 . . . . 2 n = 4 [ sum ( 1 2 3 . . . . n ) ] = 4 s"
negate(const_2)