MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following is the valid differential equation x = a cos( t + )? |
| A. | d<sup>2</sup>x/dt<sup>2</sup> x = 0 |
| B. | d<sup>2</sup>x/dt<sup>2</sup> + x = 0 |
| C. | d<sup>2</sup>x/dt<sup>2</sup> <sup>2</sup>x = 0 |
| D. | d<sup>2</sup>x/dt<sup>2</sup> + <sup>2</sup>x = 0 |
| Answer» E. | |