document.write( "Question 1074035: How do I find the exact value of the trigonometric expression given that cscU=-13/5 and cosV=3/4. How do I solve tan(V-U) using the given values?
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Algebra.Com's Answer #688889 by MathTherapy(10557)\"\" \"About 
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How do I find the exact value of the trigonometric expression given that cscU=-13/5 and cosV=3/4. How do I solve tan(V-U) using the given values?
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cos V is positive (> 0)
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document.write( "Since csc U is < 0, then sin U is also < 0
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document.write( "Thus, angles V and U are in the 4th quadrant
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document.write( "\"tan+%28V+-+U%29+=+%28tan+%28V%29+-+tan+%28U%29%29%2F%281+%2B+tan+%28V%29+%2A+tan+%28U%29%29\"
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document.write( "\"highlight_green%28matrix%281%2C3%2C+tan+%28V+-+U%29%2C+%22=%22%2C+-+9%2F20%29%29\" \n" );
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