Finding the Exact Values of Trig Expressions part 1

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Uploaded by on Jun 8, 2009

This video will show you how to find the reference angle. Then you refer to a reference triangle and the trig ratios to be able to find the exact value.

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Education

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  • buy a mic...

  • THANK YOU! WHY COULDN'T MY TEACHER JUST SAY THIS!?

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All Comments (26)

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  • Thanks for the help.

  • Wow, this was so easy to understand i got an A+ in my exam after getting a D in the assignment, thank you!!! :)

  • THANK YOU!!!! I was absent you have no idea how much you saved me!

  • cool

  • Very helpful thanx

  • THANK YOU.

  • @jack2452 but thanks a lot, i had to go ask my teacher what a drag

  • @jack2452 no you don't, for this particular traing it's in the quadrant between 180 and 270 so you subtract fomr either, each way is correct so you get on of the special triangles

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