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