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OpenStudy (anonymous):
If x+1/x=2, then find the principal value of sin-1x.
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OpenStudy (anonymous):
hmm?
OpenStudy (anonymous):
$$x+\frac1x=2\\x^2+1=2x\\x^2-2x+1=0\\(x-1)^2=0\\x=1$$Can you figure out \(\arcsin 1\)?
OpenStudy (anonymous):
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