Question

Need urgent help with some trig!

Solve the given equation over the interval [0, 2π): 2 cos x − 1 = 0.

Answer 1

(pi/3,5pi/3)

Answer 2

just draw cosx graph and see the intersection with y=1/2

Answer 3

how to post image here

Answer 4

\(\implies \cos x = \dfrac{1}{2}\)

no nice answers, so drawing is good idea

The computer spits this out :(
\(x = \pi \dfrac{1}{3} (6 n - 1)\)

Draw is good

Answer 5

to solve any trignimentry que you need to understand geaphs properly

Answer 6

ask more que please

Answer 7

oh Scheisse

wasn't paying attention :(

missed fundie relationship.