State the exact values of all the trigonometric rations for theta.

[Giu1iano]

Homework Statement

P(-5,-2) is a terminal point of angle theta in standard position. State the exact values of all the trigonometric rations for theta.

Homework Equations

x^2+y^2=r^2
csc=1/sin
sec=1/cos
cot=1/tan

The Attempt at a Solution

 

[Ray Vickson]

Homework Statement

P(-5,-2) is a terminal point of angle theta in standard position. State the exact values of all the trigonometric rations for theta.

Homework Equations

x^2+y^2=r^2
csc=1/sin
sec=1/cos
cot=1/tan

The Attempt at a Solution

View attachment 113737

Your image is unreadable. Please type out your solution.

 

[Giu1iano]

 

[LCKurtz]

Check your signs on the tan and cot.

 

[Giu1iano]

Tan is y/x and Cot is x/y.. what's wrong with it?

 

[LCKurtz]

In what quadrants are tan and cot positive vs negative?

 

[Giu1iano]

1 and 3

 

[Giu1iano]

In what quadrants are tan and cot positive vs negative?

Pos in quadrant 1 neg in quadrant 3

 

[LCKurtz]

Wrong. Look in your text.

 

[Giu1iano]

Wrong. Look in your text.

Explain. I learn "CAST" to help remember that but first you explain

 

[LCKurtz]

I don't know or care what CAST is, but whatever it is you would do better to just understand the signs. What do you get if you calculate $\tan \theta = \frac{-2}{-5}$?

 

[LCKurtz]

Perhaps you can find someone else to help you. I'm done.

 

[Dale]

Closed for cleanup