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anonymous
 5 years ago
How to find exact value... of sin (2π)/3
anonymous
 5 years ago
How to find exact value... of sin (2π)/3

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what do you mean? with what means? calculator, sequence, approximation?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Remember that pi is equal to 180 degrees and 2pi is 360 degrees. So, this one is 360/3 or 120 degrees. This angle is in the 2nd quadrant and the angle of reference (always from the x axis) is 60 degrees. The sin of 60 is the square root of 3 over 2. And, since it's in the 2nd quadrant, it is positive. Remember sin is positive in the 1st and 2nd quadrant and negative in the 3rd and 4th.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0stole it though...but your hint made me look it up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[what is \sin 2\pi ? \it is 0 do you mean \sin(2\pi/3)? this is the same as \sin \pi/3\] beep and radar gave you good hints

radar
 5 years ago
Best ResponseYou've already chosen the best response.0Should be helpful to alive
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