document.write( "Question 794339: please help me to solve this\r
\n" ); document.write( "\n" ); document.write( "tanx.cosx - tanx + cosx -1 = 0 \n" ); document.write( "

Algebra.Com's Answer #480653 by lwsshak3(11628) $\"\"$ $\"About$

You can put this solution on YOUR website!
tanx.cosx - tanx + cosx -1 = 0
\n" ); document.write( " $\"%28sin%28x%29%2Fcos%28x%29%29%2Acos%28x%29-tan%28x%29%2Bcos%28x%29-1=0\"$
\n" ); document.write( " $\"sin%28x%29-sin%28x%29%2Fcos%28x%29%2Bcos%28x%29-1=0\"$
\n" ); document.write( " $\"cos%28x%29sin%28x%29-sin%28x%29%2Bcos%5E2%28x%29-cos%28x%29=0\"$
\n" ); document.write( " $\"sin%28x%29%28cos%28x%29-1%29%2Bcos%28x%29%28cos%28x%29-1%29=0\"$
\n" ); document.write( " $\"%28cos%28x%29-1%29%28sin%28x%29%2Bcos%28x%29%29=0\"$
\n" ); document.write( "cos(x)-1=0
\n" ); document.write( "cos(x)=1
\n" ); document.write( "x=0
\n" ); document.write( "..
\n" ); document.write( "sin(x)+cos(x)=0
\n" ); document.write( "sin(x)=-cos(x)
\n" ); document.write( "x=3π/4 (In quadrant II where sin>0 and cos<0) \n" ); document.write( "

\n" );