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1. |
If α and β are the zeros of 10x2+20x-80, then the value of \(\frac {1}{\alpha } + \frac {1}{\beta }\) is _______ |
A. | \(\frac {5}{4}\) |
B. | \(\frac {1}{5}\) |
C. | \(\frac {3}{4}\) |
D. | \(\frac {1}{4}\) |
Answer» E. | |