SOLUTION: Use a graphing calculator to solve the equation -3 cos t =1 in the interval from 0 to 2p. Round to the nearest hundredth.

Algebra ->  Trigonometry-basics -> SOLUTION: Use a graphing calculator to solve the equation -3 cos t =1 in the interval from 0 to 2p. Round to the nearest hundredth.      Log On


   



Question 870259: Use a graphing calculator to solve the equation -3 cos t =1 in the interval from 0 to 2p. Round to the nearest hundredth.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Use a graphing calculator to solve the equation -3 cos t =1 in the interval from 0 to 2p. Round to the nearest hundredth.
-----------------
cos(t) = -1/3
-----
arccos(-1/3) = 1.9106..
-----
OR
arccos(-1/3) = -1.9106 or (2pi)-1.9106 = 4.3726...
================
Cheers,
Stan H.
================