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.


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