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ZeHanzBest ResponseYou've already chosen the best response.0
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?
 one year ago

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

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

gies28Best ResponseYou've already chosen the best response.1
What is the exact value of cos 45° as found on the unit circle?
 one year ago

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

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