MCQOPTIONS
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MCQOPTIONS
| 1. |
If f(x) = cos hx + sin hx, then which one of the following is correct? |
| A. | f(x) f(y) = f(x) + f(y) |
| B. | f(x) f(y) = f(xy) |
| C. | f(x) f(y) = f(x + y) |
| D. | \(f(x)f(y) = f(\frac{x}{y})\) |
| Answer» D. \(f(x)f(y) = f(\frac{x}{y})\) | |