Find the complete solution set for sin(2x) = -cos(x) on the interval [0, 2Ï€).
Added by Emily C.
Step 1
So the equation becomes: 2sin(x)cos(x) = -cos(x). Now, we can divide both sides by cos(x), but we need to be careful about when cos(x) = 0. So let's first find when cos(x) = 0: cos(x) = 0 x = pi/2, 3pi/2 Now, let's divide the equation by cos(x): Show more…
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