SOLUTION: How to define a numerical point E(t) in the numerical circle if ctgt = 1, cost

SOLUTION: How to define a numerical point E(t) in the numerical circle if ctgt = 1, cost < 0?

Question 939875: How to define a numerical point E(t) in the numerical circle if ctgt = 1, cost < 0?
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

given:

since
, we have

=> �

for the point in the numerical circle the is and y-coordinate is :

so, the point in the numerical circle if � is:
(,)

given:

cos is negative for �

the point has will be between points (,) and (,)
it will be negative if or �

the point is at any point starting with (,) and going to the point (,)

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