Exercise 1.1

For the following sequence of expressions, what are the results printed to the interpreter?

10
10

(+ 5 3 4)
12

(- 9)
-9

(/ 6 2)
3

(+ (* 2 4) (- 4 6))
6

(define a 3)

(define b (+ a 1))

(+ a b (* a b))
19

(= a b)
#f

(if (and (> b a) (< b (* a b)))
    b
    a)
4

(cond ((= a 4) 6)
      ((= b 4) (+ 6 7 a))
      (else 25))
16

(+ 2 (if (> b a) b a))
6

(* (cond ((> a b) a)
         ((< a b) b)
         (else -1))
   (+ a 1))
16

Back to exercises