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- ; Problem 4
- (define (quadformula a b c)
- (list (/ (+ (* -1 b) (sqrt (+ (* -4 (* a c)) (* b b)))) (* 2 a))
- (/ (- (* -1 b) (sqrt (+ (* -4 (* a c)) (* b b)))) (* 2 a))))
- (define (findroot l1)
- (quadformula (car(car l1)) (car(car(cdr l1))) (car(car(cdr(cdr l1)))) ))
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