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ZeHanz
 one year ago
Best ResponseYou've already chosen the best response.0A 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?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1pi = 180 3pi/2 = 3(180)/2 = 3(90) = ?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1You can't make it any more obvious than that.

gies28
 one year ago
Best ResponseYou've already chosen the best response.1What is the exact value of cos 45° as found on the unit circle?

Hero
 one year ago
Best ResponseYou've already chosen the best response.1I'm only going to show you this once...I hope you understand it

Hero
 one year ago
Best ResponseYou've already chosen the best response.1\[\sin(0,30,45,60,90) = \frac{\sqrt{0,1,2,3,4}}{2}\] \[\cos(0,30,45,60,90) = \frac{\sqrt{4,3,2,1,0}}{2}\]
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