a) (√3-b)/(3-b^2) = (√3-b)/(√3-b)(√3+b) = 1/(√3+b)
б) (33-√33)/√33 = √33(√33-1)/√33 = √33-1
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a) (√3-b)/(3-b^2) = (√3-b)/(√3-b)(√3+b) = 1/(√3+b)
б) (33-√33)/√33 = √33(√33-1)/√33 = √33-1