Question 1127757
So, 1st of all, we need to find the hypotenuse (r) by Pythagorean theorem since we now have already have x and y as -1 and -3.
      so we have: x^2 + y^2 = r^2
                 (-1)^2 + (-3)^2 = r^2
                   1 + 9 = 10 = r^2
                        +√10 = r 

Now, we have x=-1, y=-3, r= √10

=> sin(θ)= y/r = -3/√10 = -3√10/10
   cos(θ)= x/r = -1/√10 = -1√10/10
   tan(θ)= y/x = -3/-1  = 3

   csc(θ)= r/y = -√10/3 
   sec(θ)= r/x = -√10
   tan(θ)= x/y = -1/-3 = 1/3