Hello, Keith!

If , where ,

find the values of the following trigonometric functions.

Here is what I did.

Given that:

. .

. .

. . . . . no

You had: .

Since is in Quadrant 3:

So we have: .

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~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

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Since , then

Hence: is in Quadrant 2.