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February 27, 2015

February 27, 2015

Posted by **Jon** on Thursday, March 6, 2008 at 3:30pm.

(0 is not the number zero I don't know what its called)

I have to find r first.

r=sqrt x^2+y^2

r=sqrt -5^2+-4^2

r=sqrt 41

sin=y/r

sin=-4/sqrt 41

cos=x/r

cos=-5/sqrt 41

tan=y/x

tan=-4/-5

csc=r/y

csc=sqrt 41/-4

sec=r/x

sec=sqrt 41/-5

cot=x/y

cot=-5/-4

- Trig -
**Reiny**, Thursday, March 6, 2008 at 4:05pmthey are all correct

but I would write tanß = 4/5

also you have no angle after your trig names

to say sin = 4/5 is a sin. (math joke)

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