Let θ be an angle in quadrant ii such that cot θ = -3. find the exact values for sin θ, cos θ, and tan θ.

Here, I've attached a picture of the triangle that accompanies this explanation. 

cot =  =  = 

Now view the triangle.
PS. Angle theta will have a coordinate of (-, +) because it is in quadrant II.

sin of the angle would be opposite/hypotenuse, so sin = 
cos of the angle would be adjacent/hypotenuse, so cos = 
tan of the angle would be opposite/adjacent, so tan =