If xy = −6 and x 3 + y 3 = 19 (x and y are integers), then what is the value of \frac{1}{ \text "x" ^{−1}} + \frac{1}{ \text "y" ^{−1}} ?

SSC CGL Tier II Quant 8 Aug 2022 Paper

Question : 83 of 100

Marks: +1, -0

If xy = −6 and x³ + y³ = 19 (x and y are integers), then what is the value of $\;{1}/{\;\text\;"x"\;^{−1}} + \;{1}/{\;\text\;"y"\;^{−1}}$ ?

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