document.write( "Question 583820: Hi! Find the angle theta between the two vectors.\r
\n" ); document.write( "\n" ); document.write( "u=10i+40j
\n" ); document.write( "v=-3j+8k\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #372618 by Alan3354(69443)\"\" \"About 
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Find the angle theta between the two vectors.\r
\n" ); document.write( "\n" ); document.write( "u=10i+40j
\n" ); document.write( "v=-3j+8k
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\n" ); document.write( "Both are in one of the orthogonal planes, so it's 90 degs.
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