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SavannahMiller27

  • 2 years ago

Evaluate the six trigonometric functions of the quadrantal angle theta. -270 degrees

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  1. swissgirl
    • 2 years ago
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    Are you referring to cos,sin,tan, sec, cosec and cot?

  2. SavannahMiller27
    • 2 years ago
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    yes

  3. zepdrix
    • 2 years ago
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    |dw:1383612986330:dw|This angle is the same as \(\large 90^o\) yes? :)

  4. SavannahMiller27
    • 2 years ago
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    yes it is

  5. zepdrix
    • 2 years ago
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    |dw:1383613131424:dw|

  6. zepdrix
    • 2 years ago
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    |dw:1383613163684:dw|The y component gives us the value for sine. So what is the length of that line in the y direction? It's the radius of the circle yes?

  7. zepdrix
    • 2 years ago
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    Do you understand how to find sine and cosine of \(\large 90^o\)? If you can do those two, you can build all the other trig relations off of those.

  8. zepdrix
    • 2 years ago
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    If you're just using a chart or some way to memorize sine and cosine, then that's fine also :o

  9. SavannahMiller27
    • 2 years ago
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    okay thanks! that helped out a lot

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