MCQOPTIONS
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MCQOPTIONS
| 1. |
If the roots of the equation a(b - c)x2 + b(c - a)x + c(a - b) = 0 are equal, then which of the following is true? |
| A. | b = (a + c)/ac |
| B. | 2/b = (1/a) + (1/c) |
| C. | 2b = (1/a) + (1/c) |
| D. | abc = ab + bc + ca |
| Answer» C. 2b = (1/a) + (1/c) | |