Question

ДАЮ 75 БАЛОВ!!!
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Answer 1

$\displaystyle\bf\\4x^{2} -9x+3=0\\\\Teorema \ Vieta \ :\\\\x_{1} + x_{2} =\frac{9}{4} \\\\x_{1} \cdot x_{2} =\frac{3}{4}\\\\\\\frac{1}{x_{1} } +\frac{1}{x_{2} } =\frac{x_{1} + x_{2} }{x_{1} \cdot x_{2} }=\frac{9}{4}:\frac{3}{4} =\frac{9}{4} \cdot\frac{4}{3} =3\\\\\\Otvet \ : \ \frac{1}{x_{1} } +\frac{1}{x_{2} } =3$