document.write( "Question 1178933: if tan(a) = -2, find the exact value of sin(a) and specify each possible quadrant \n" ); document.write( "
Algebra.Com's Answer #808407 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "if \"tan%28a%29+=+-2\", find the exact value of \"sin%28a%29\" and specify each possible quadrant\r
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\n" ); document.write( "\n" ); document.write( "\"tan%28a%29+=+opp%2Fadj\"\r
\n" ); document.write( "\n" ); document.write( "if \"tan%28a%29+=+-2\"=> \"tan%28a%29+=+-2%2F1+\"=>\"+opp=-2\" and \"adj=1\"\r
\n" ); document.write( "\n" ); document.write( "then \r
\n" ); document.write( "\n" ); document.write( "\"hyp=sqrt%28%28-2%29%5E2%2B1%5E2%29\"\r
\n" ); document.write( "\n" ); document.write( "\"hyp=sqrt%285%29\"\r
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\n" ); document.write( "\n" ); document.write( " \"sin%28a%29=opp%2Fhyp\"\r
\n" ); document.write( "\n" ); document.write( "\"sin%28a%29=-2%2Fsqrt%285%29\"\r
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\n" ); document.write( "\n" ); document.write( "only possible quadrant is Quadrant IV, sine is negative \"only\" in Quadrant IV\r
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