The maximum distance from the origin of ...

The maximum distance from the origin of a point on the curve `x = a sin t - b sin((at)/(b)), y = a cos t - b cos((at)/(b)), "both a, b" gt 0`, is

A

a - b

B

a + b

C

`sqrt(a^(2) + b^(2))`

D

`sqrt(a^(2) - b^(2))`

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The correct Answer is:

A

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