Find all solutions of the equation in the interval [0, 2????). (Enter your answers as a comma-separated list. If there is no solution, enter NO SOLUTION.) 10 sin2 x = 10 + 5 cos x
Added by Nestor L.
Step 1
cos x = -1 when x = π, which is in the interval [0, 2π). cos x = 9/10 when x = arccos(9/10), which is approximately 0.4712 radians. This is also in the interval [0, 2π). Show more…
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