SOLUTION: (cos(t))^2=1/4 Solve the following equation in the interval [0, 2 ]. Note: Give the answer as a multiple of . Do not use decimal numbers. The answer should be a fraction or a

Algebra ->  Trigonometry-basics -> SOLUTION: (cos(t))^2=1/4 Solve the following equation in the interval [0, 2 ]. Note: Give the answer as a multiple of . Do not use decimal numbers. The answer should be a fraction or a      Log On


   

Question 669984: (cos(t))^2=1/4
Solve the following equation in the interval [0, 2 ].
Note: Give the answer as a multiple of . Do not use decimal numbers. The answer should be a fraction or an integer. Note that is already included in the answer so you just have to enter the appropriate multiple. E.g. if the answer is 2 you should enter 1/2. If there is more than one answer enter them separated by commas.
ANS: t = ___ pi
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

(cos(t))^2=1/4

cos(t)= ± 1/2

 t = (1/3)pi, (5/3)pi, (2/3)pi, (4/3)pi

Thought the following (cosx, sinx) summary would help You in Your studies