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1. |
Determine the value of \(\left( {\frac{1}{r} + \frac{1}{s}} \right)\) when r3 + s3 = 0 and r + s = 6. |
A. | 0 |
B. | 0.5 |
C. | 1 |
D. | 6 |
Answer» C. 1 | |