KCET 2009 Math Solved Paper

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Question : 51 of 61

Marks: +1, -0

The length of the subtangent at 't'on the curve x=a(t+sin‌t),y=a(1−cos‌t) is

2asin‌3(‌
t
2
) sec(‌
t
2
)
asin‌t
2asin‌(‌
t
2
)‌tan(‌
t
2
)
2asin‌‌
t
2

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