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The length of the subtangent at t on the...

The length of the subtangent at t on the curve `x=a(t+sint),y=a(1-cost)` is

A

`2 a "sin"t/2`

B

`2asin^(3)(t/2)sec(t/2)`

C

`a sin t`

D

`2a sin (t/2)tan(t/2)`

Text Solution

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The correct Answer is:
C
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