Tuesday
September 30, 2014

Homework Help: Trigonometric functions

Posted by Jon on Sunday, February 10, 2008 at 5:13pm.

1)Which angle is coterminal with a -400 degree angle in standard postion?
A)40
B)80
C)320
D)400
I chose A

(for the next one I dont know what its called but it looks like 0 with a horizontal line through the middle.)

2)Find the exact value of cos looks like 0 with a horizontal line through the middle if the terminal side of 0 with a horizontal line through the middle in standard postion contains the point (6,-8).
A)-4/5
B)3/5
C)4/5
D)-3/5
I chose B

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