Precalculus

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I know I posted this but I have some questions..

So is the general solution: theta= +/- 222+360k

Then is it legal to ....
-222+360(1)????

222+360(0)=222(just like your answer)

How come there is only one answer????

  • Precalculus -

    there is usually only one answer because the domain is restricted to
    0 <= theta < 360

    I mean, who cares about the other equivalent angles? They're all the "same" angle.

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