Question

calcule: xy-y²/√xy x=o,5 y=8

Answer 1

Resposta:

R=-30

Explicação passo-a-passo:

${xy-y^2\over\sqrt{xy} }=\\ \\ Se~~x=0,5~~e~~y=8\\ \\ {(0,5)(8)-8^2\over\sqrt{(0,5)(8)} }=\\ \\ {4-64\over\sqrt{4} }=\\ \\ {-60\over2}=-30$