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mrstealyogirl40
30.08.2019 •
Mathematics
How do i find the exact value of tan⁻¹(tan ) ? i know the answer is negative, but i don't know why the inverse of tan and tan don't cancel out for the answer to just be 4pi/5 ?
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Ответ:
A different way to go about this is to find the value of
Instead, we can use a trigonometric identity to find the value of
We know that
Ответ: