document.write( "Question 1062978: What is the value of cos−1 ⁡(−√2/2) in Quadrant II?\r
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Algebra.Com's Answer #677992 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
You could find the answer with a calculator.
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\n" ); document.write( "I recommend you learn the unit circle, tho.
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