Question

Please help me with this problem.
​

Answer 1

just to add to that great reply by @MathPhys above

`\bf (\stackrel{adjacent}{-9},\stackrel{opposite}{-5})~\hfill cot(\theta )=\cfrac{\stackrel{adjacent}{-9}}{\stackrel{opposite}{-5}}\implies cot(\theta )=\cfrac{9}{5}`

bear in mind that, the value coordinate pairs we get is the (x,y) coordinates, and x = adjacent side of the triangle whilst y = opposite side of it.

Answer 2

b. 9/5

Explanation:

Cotangent is the inverse of tangent.

tan θ = y/x

cot θ = x/y

cot θ = (-9)/(-5)

cot θ = 9/5