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The maximum distance from origin of a po...

The maximum distance from origin of a point on the curve `x=asint-bsin((a t)/b), y=acost-bcos((a t)/b)`, borth a,b>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:
B
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