How to find the value of tan(855) degrees ?

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How to find the value of tan(855) degrees ?

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Answer 1 · 2018-06-25T08:13:26

-1

Explanation:

For any degree over 360, subtract intervals of 360 off until it is less, for example

$855 - 360 = 495 - 360 = 135$ $855-360=495-360=135$

So you are looking for $tan (135)$ $tan(135)$ this is halfway between 90 and 180 degrees. This means it behaves like 45 degrees, but with cos being the negative of $cos (45)$ $cos(45)$ , since $tan (45)$ $tan(45)$ is 1 $tan (135)$ $tan(135)$ is -1.

Answer 2 · 2018-06-25T08:13:50

$- 1$ $-1$

Explanation:

subtract multiples of $360^{0}$ $360^0$ until we have

$0 < θ < 360$ $0 < theta <360$

$tan (855) = tan (855 - 720) = tan 135$ $tan(855)=tan(855-720)=tan135$

this is in $Q I I$ $QII$

$tan 135 = - tan 45 = - 1$ $tan135=-tan45=-1$

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How to find the value of tan(855) degrees ?

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