document.write( "Question 1087028: If v = (2, -5), find the magnitude and direction angle of 2v. \n" ); document.write( "

Algebra.Com's Answer #701312 by ikleyn(52835) $\"\"$ $\"About$

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document.write( "The magnitude of the vector 2v is  =  =  = .\r\n" );
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document.write( "The direction angle of the vector 2v is the same as that of the vector v:\r\n" );
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document.write( " =  = -2.5.\r\n" );
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document.write( "Notice that the angle  lies in QIV.\r\n" );
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document.write( "Therefore,   = ,  or, which is the same,   = .\r\n" );
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