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gies28

  • 3 years ago

How many degrees are in 3pi/2 radians?

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  1. ZeHanz
    • 3 years ago
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    A full circle is 360 degrees. If you take the Unit circle, the circumference is 2*pi*r=2*pi*1=2pi. Because the radian is the same unit as the length of the unit circle, there are also 2pi radians in a full circle. So remember: 360 degrees = 2pi radians. Now can you see the number of degrees in 3pi/2 (= 3/2*pi) radians?

  2. gies28
    • 3 years ago
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    thx

  3. gies28
    • 3 years ago
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    so whats the answer

  4. Hero
    • 3 years ago
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    pi = 180 3pi/2 = 3(180)/2 = 3(90) = ?

  5. nitz
    • 3 years ago
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    still confusion?

  6. Hero
    • 3 years ago
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    You can't make it any more obvious than that.

  7. gies28
    • 3 years ago
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    ya i get it thx

  8. Hero
    • 3 years ago
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    So...what is it then?

  9. gies28
    • 3 years ago
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    270

  10. gies28
    • 3 years ago
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    What is the exact value of cos 45° as found on the unit circle?

  11. Hero
    • 3 years ago
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    I'm only going to show you this once...I hope you understand it

  12. gies28
    • 3 years ago
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    k

  13. Hero
    • 3 years ago
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    \[\sin(0,30,45,60,90) = \frac{\sqrt{0,1,2,3,4}}{2}\] \[\cos(0,30,45,60,90) = \frac{\sqrt{4,3,2,1,0}}{2}\]

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