Question

Use the rules given below to find $\sin 135^\circ$, $\cos 150^\circ$, and $\tan 135^\circ$. $\sin (180^\circ - \theta) = \sin \theta$, $\cos (180^\circ - \theta) = -\cos \theta$, and $\tan (180^\circ - \theta) = -\tan \theta$ $\sin (180^\circ + \theta) = -\sin \theta$, $\cos (180^\circ + \theta) = -\cos \theta$, and $\tan (180^\circ + \theta) = \tan \theta$

          Use the rules given below to find $\sin 135^\circ$, $\cos 150^\circ$, and $\tan 135^\circ$.
$\sin (180^\circ - \theta) = \sin \theta$, $\cos (180^\circ - \theta) = -\cos \theta$, and $\tan (180^\circ - \theta) = -\tan \theta$
$\sin (180^\circ + \theta) = -\sin \theta$, $\cos (180^\circ + \theta) = -\cos \theta$, and $\tan (180^\circ + \theta) = \tan \theta$

Use the rules given below to find sin 135^∘, cos 150^∘, and tan 135^∘.
sin (180^∘ - θ) = sinθ, cos (180^∘ - θ) = -cosθ, and tan (180^∘ - θ) = -tanθ
sin (180^∘ + θ) = -sinθ, cos (180^∘ + θ) = -cosθ, and tan (180^∘ + θ) = tanθ

Added by Sergio M.

Precalculus with Limits

Ron Larson 2nd Edition

Instant Answer

Solved by Expert Elizabeth Xu

05/21/2020

Step 1

Step 1: We can use the given rules to find the values of sin 135°, cos 150°, and tan 135°. Show more…

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Use the rules given below to find sin 135°, cos 150°, and tan 135°. sin (180° - θ) = sin θ, cos (180° − θ) = − cos θ, and tan (180° - θ) = − tan θ sin (180° + θ) = − sin θ, cos (180° + θ) = − cos θ, and tan (180° + θ) = tan θ