document.write( "Question 810109: given sinθ=4/5 and θ is obtuse, find cosθ and 2tanθ \n" ); document.write( "

Algebra.Com's Answer #488118 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
given sinθ=4/5 and θ is obtuse, find cosθ and 2tanθ
\n" ); document.write( "***
\n" ); document.write( "You are working with 3-4-5 reference right triangle in quadrant II where sin>0, cos<0, tan<0
\n" ); document.write( "sinθ=4/5
\n" ); document.write( "cosθ=-3/5
\n" ); document.write( "tanθ=sin/cos=-4/3
\n" ); document.write( "2tanθ=-8/3 \n" ); document.write( "

\n" );