FIND ALL SIX TRIGONOMETRIC FUNCTIONS FOR ANGLE OF 4PI/3 RADIANS?---The reference angle for (4/3)pi is pi/3---

What point on the unit circle responds to -4pi/3?-----Reference angle is pi/3

You can put this solution on YOUR website! rewrite 4pi/3 in degrees 4π/3 radians=4*180/3=240

4PI/3 Thank you This question is from textbook Algebra and Trigonomerty Answer by jim_thompson5910(35256 ...

cos(-4pi/3) = -.5 arccos(-.5) = 2.094395102. note that -4pi/3 is a negative angle. to convert to a positive angle between 0 and 2pi radians, add 2pi radians to it until it goes positive. you will get -4pi/3 + 2pi = 2.094395102 radians. that is the an equivalent positive angle that has the same trig functions as the noriginal negative angle.

the reference angle is 4pi/3 - p = 4pi/3 - 3pi/3 = pi/3. the equivalent angle in degrees is pi/3 * 180/pi = 180/3 = 60 degrees, same as we got before when working in degrees. there is no one reference point for an angle of 240 degrees, unless you are talking about the unit circle.

question 597188: find all six trigonometric functions for angle of 4pi/3 radians? Answer by solver91311(24713) ( Show Source ): You can put this solution on YOUR website!

Solution for rewrite cos(x+4pi/3) in terms of sin(x) and cos(x)

You would think the answer was 4pi/3, but the range of cos^-1 is [0,pi]

Question 565832: write an expression for all the angles coterminal with 4pi/3. express answer in radian form. find the measures of two other angles, one positive and one negative, that are coterminal with the angle. Answer by solver91311(24713) (Show Source):