document.write( "Question 1092702: If cos(theta)=-3/5 and sin<0 find the exact value of tan(theta). Thanks for the help!! \n" ); document.write( "

Algebra.Com's Answer #707312 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
They are saying the sin function is negative,
\n" ); document.write( "so the angle has to be in either the 3rd or 4th
\n" ); document.write( "quadrant
\n" ); document.write( "The cos is also negative ( $\"+-3%2F5+\"$ ), which puts
\n" ); document.write( "the angle in the 3rd quadrant
\n" ); document.write( "-------------------------------
\n" ); document.write( " $\"+-3%2F5+\"$ for cos means that $\"+theta+\"$ forms a 3-4-5
\n" ); document.write( "triangle,
\n" ); document.write( " $\"+tan%28+theta+%29+=+%28-4%29+%2F+%28-3%29+\"$
\n" ); document.write( " $\"+tan%28+theta+%29+=+4%2F3+\"$ \n" ); document.write( "

\n" );