MCQOPTIONS
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MCQOPTIONS
| 1. |
If a + b + c = 0, then which of the following are correct?1. a3 + b3 + c3 = 3abc2. a2 + b2 + c2 = -2(ab + bc + ca)3. a3 + b3 + c3 = -3ab(a + b)Select the correct answer using the code given below. |
| A. | 1 and 2 only |
| B. | 2 and 3 only |
| C. | 1 and 3 only |
| D. | 1, 2 and 3 |
| Answer» E. | |