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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

a sin t

B

2a sin^(3) (t/2) . sec (1/2)

C

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

D

2a sin (t/2)

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The correct Answer is:
A
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HIMALAYA PUBLICATION-APPLICATION OF DIFFERENTIATION-QUESTION BANK
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