find the sum of first 35 natural numbers
"explanation : sum of n natural numbers = n ( n + 1 ) / 2 = 35 ( 35 + 1 ) / 2 = 35 ( 36 ) / 2 = 630 answer : option c"
add(divide(divide(35, divide(divide(divide(divide(divide(35, const_2), const_2), const_2), const_2), const_2)), const_2), add(const_1, sqrt(divide(divide(35, divide(divide(divide(divide(divide(35, const_2), const_2), const_2), const_2), const_2)), const_2))))