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Holetaug 2022-07-15 Answered
Find the limit
lim x 1 2 cos ( sin 1 x ) x 1 cot ( cos 1 x )
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Answers (1)

Adolfo Rich
Answered 2022-07-16 Author has 9 answers
If sin 1 x = t cos 1 x = π 2 t, therefore,
lim t π 4 cos t sin t 1 cot ( π 2 t ) = lim t π 4 cos t sin t 1 tan t = cos π 4

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