Oblicz granice a) [latex] lim_{x o 3} frac{ sqrt{ x^{2}-3x+9 } }{x+2} [/latex] b) [latex] lim_{x o-3} frac{9+3x}{2x+6} [/latex] c) [latex] lim_{x o 9 } frac{x-9}{ sqrt{x} -3} [/latex]

Oblicz granice a) [latex] lim_{x o 3} frac{ sqrt{ x^{2}-3x+9 } }{x+2} [/latex] b) [latex] lim_{x o-3} frac{9+3x}{2x+6} [/latex] c) [latex] lim_{x o 9 } frac{x-9}{ sqrt{x} -3} [/latex]