What are the sine, cosine, and tangent of Θ = 3 pi over 4 radians?

Question

anonymous · Answer

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luigi0210 · Answer

$\frac{3\pi}{4}=135^○$

anonymous · Answer

where do you get the 135 from?

luigi0210 · Answer

Just $\frac{\pi}{4}$ is 45 degrees

anonymous · Answer

sin Θ = square root 2 over 2; cos Θ = negative square root 2 over 2; tan Θ = -1

 sin Θ = negative square root 2 over 2; cos Θ = square root 2 over 2; tan Θ = 1

 sin Θ = square root 2 over 2; cos Θ = negative square root 2 over 2; tan Θ = 1

 sin Θ = negative square root 2 over 2; cos Θ = square root 2 over 2; tan Θ = -1

Are my answer choices btw, if that helps.

anonymous · Answer

okay, so it's 3 times 45 basically. Right?

anonymous · Answer

http://puu.sh/aTmll/3df5f39361.png Thats the answer choices again, probably easier to tell like this.

anonymous · Answer

What do I do with the 3x/4 = 135 exactly?

luigi0210 · Answer

Since 3pi/4 is a multiple of 45, just in a different quad, use the 45-45-90 triangle

anonymous · Answer

What does the little circle with an H in it mean btw? Hypotenuse?

luigi0210 · Answer

It would look something like this: 
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