How do you use a calculator to evaluate $tan (- \frac{25 π}{7})$ $tan(-(25pi)/7)$ ?

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How do you use a calculator to evaluate $tan (- \frac{25 π}{7})$ $tan(-(25pi)/7)$ ?

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Answer 1 · 2018-04-10T16:07:34

-0.48

Explanation:

$tan (- 25 \frac{π}{7}) = tan (- \frac{tan π}{7} - 24 π) = tan (- \frac{π}{7})$ $tan (- 25pi/7) = tan (- tan pi/7 - 24pi) = tan (- pi/7)$
$tan (- \frac{π}{7}) = tan - \frac{180}{7} = tan (- 25^{\circ} 7142)$ $tan (-pi/7) = tan - 180/7 = tan (-25^@7142)$
Calculator gives -->
$tan (- 25.7142) = - 0.4815$ $tan (-25.7142) = - 0.4815$

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How do you use a calculator to evaluate $tan (- \frac{25 π}{7})$ $tan(-(25pi)/7)$ ?

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Science

Math

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How do you use a calculator to evaluate tan(−25π7)tan(-(25pi)/7)?

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Explanation:

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How do you use a calculator to evaluate $tan (- \frac{25 π}{7})$ $tan(-(25pi)/7)$ ?