MCQOPTIONS
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MCQOPTIONS
| 1. |
If sin x + a cos x = b, then |a sin x - cos x| is: |
| A. | \(\rm \sqrt{a^2 + b^2 +1}\) |
| B. | \(\rm \sqrt{a^2 - b^2 +1}\) |
| C. | \(\rm \sqrt{a^2 + b^2 -1}\) |
| D. | None of the above. |
| Answer» C. \(\rm \sqrt{a^2 + b^2 -1}\) | |