[SOLVED] CS (define x hello)

(define x hello)
(define y hello)
(eq? x y)

(define s1 hello)
(define s2 (string-append hel lo))

(define L (1 2 3))
(car L)
(cdr L)
(cdddr L)

(define a 1)
(define b 2)
(list a b)
(a b)

(define t ((1 2)(3 4)5 (6 (7) 8)))

(define exp1 (let ((x 2)(y 5))
(* 3 (+ x y)(- 10 x))))
(define exp2 (let ((x 2)(y 5))
(* 3 (+ x y)(- 10 x))))

(define env (interaction-environment))
(eval (+ 1 2) env)