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Mathematics 20 Online
OpenStudy (anonymous):

Find the exact value of the trigonometric function. cot(-5pi/4)

OpenStudy (anonymous):

a. 1 b. -1 c. -sq root of 2

OpenStudy (anonymous):

-1

OpenStudy (dumbcow):

http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg cot = cos/sin

ganeshie8 (ganeshie8):

cot(-5pi/4) cot(2pi - 5pi/4) cot(3pi/4) -cot(pi - 3pi/4) -cot(pi/4) -1

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