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Mathematics, 10.12.2020 09:10 bri1710

If x/y = (-1/3)^-1 ÷ (2/5)-4 then find the value of (x/y)^-1

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If x/y = (-1/3)^-1 ÷ (2/5)-4 then find the value of (x/y)^-1...
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