Homework SourseFind the exact solutions to the equation sin 2x cos x 0 in
Find the exact solutions to the equation sin (2x) + cos x = 0 in the interval [0, 2]
Can you provide me with the step by step process so that I can understand this question please?
Solution
Sin (2x) +cos x=0
2sin x cos x + cos x=0
cos x(2sin x +1)=0
cos x=0 , sin x=-1/2
x=pi/2 , 3pi/2 , x =7pi/3 , 11pi/3
![Find the exact solutions to the equation sin (2x) + cos x = 0 in the interval [0, 2] Can you provide me with the step by step process so that I can understand t](/WebImages/47/find-the-exact-solutions-to-the-equation-sin-2x-cos-x-0-in-1147738-1761617307-0.webp "Find the exact solutions to the equation sin (2x) + cos x = 0 in the interval [0, 2] Can you provide me with the step by step process so that I can understand t")
