I'm trying to learn scheme via SICP. Exercise 1.3 reads as follow: Define a procedure that takes three numbers as arguments and returns the sum of the squares of the two larger numbers. Please comment on how I can improve my solution.

(define (big x y)
    (if (> x y) x y))

(define (p a b c)
    (cond ((> a b) (+ (square a) (square (big b c))))
          (else (+ (square b) (square (big a c))))))
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