(adsbygoogle = window.adsbygoogle || []).push({}); cos theta=pi/2....hint pi/2 is not an angle.

1. The problem statement, all variables and given/known data

[tex]\cos\theta=\frac{\pi}{2}[/tex] HINT:The real number [itex]\frac{\pi}{2}[/itex] is not an angle.

2. Relevant equations

3. The attempt at a solution

I tried [itex]0=\cos^{-1} \frac{\pi}{2}[/itex], but that equals no solution.

And if [itex]\frac{\pi}{2}[/itex] were an angle the answer would be 0.

Am I solving this correctly?

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# Homework Help: Cos theta=pi/2 hint pi/2 is not an angle.

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