hard · GMAT Quant
A logistics firm uses a cost-optimization variable y that satisfies y - dfrac1y = 4.
What is the value of (y^2 + dfrac1y^2)^2?
A logistics firm uses a cost-optimization variable y that satisfies y - dfrac1y = 4. What is the value of (y^2 + dfrac1y^2)^2?
- 324
- 196
- 256
- 18
- 400
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