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gandalfwiz

  • 2 years ago

I forgot how to do radians :P What's (7 pi)/6 and how do you find it?

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  1. gandalfwiz
    • 2 years ago
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    Wait, it's sin (7 pi)/6

  2. cwrw238
    • 2 years ago
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    pi radians = 180 degrees

  3. gandalfwiz
    • 2 years ago
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    I know that pi= 180, but there's a way to find the value without your calculator.

  4. cwrw238
    • 2 years ago
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    7pi/6 = 7/6 * 180 = 210 degrees sine is negative in 3rd quadrant look up sin 30 degrees on ur calculator and multiply by -1

  5. gandalfwiz
    • 2 years ago
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    Okay, I think I got it.

  6. cwrw238
    • 2 years ago
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    yes 30 degrees is in the following triangle |dw:1371505489250:dw|

  7. gandalfwiz
    • 2 years ago
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    I actually did mine a different way, but they both work :) Thank you!

  8. cwrw238
    • 2 years ago
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    yw

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