document.write( "Question 947785: Please help me solve this equation
\n" ); document.write( " find the two values of theta in the interval 0\n" ); document.write( "\n" ); document.write( "Thank you \n" ); document.write( "

Algebra.Com's Answer #578400 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"4cos%28theta%29+=+1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"cos%28theta%29+=+1%2F4\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"theta+=+2+pi%2An-cos%5E%28-1%29%281%2F4%29\"$ , $\"n\"$ element $\"Z\"$ \r
\n" ); document.write( "\n" ); document.write( "first find
\n" ); document.write( " $\"cos%5E%28-1%29%281%2F4%29+=75.52\"$ ° or $\"1.31811607\"$ radians\r
\n" ); document.write( "\n" ); document.write( "that is
\n" ); document.write( " $\"theta+=+2+pi%2An-cos%5E%28-1%29%281%2F4%29\"$ , if $\"n+=0\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"theta+=+2+pi%2A0-cos%5E%28-1%29%281%2F4%29\"$
\n" ); document.write( " $\"theta+=1.31811607\"$ radians
\n" ); document.write( " $\"theta+=75.52\"$ °\r
\n" ); document.write( "\n" ); document.write( "second angle\r
\n" ); document.write( "\n" ); document.write( " $\"theta+=+2pi%2A1-cos%5E%28-1%29%281%2F4%29\"$ , if $\"n+=1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"theta+=+2pi-1.31811607\"$
\n" ); document.write( " $\"theta+=+6.2831853-1.31811607\"$
\n" ); document.write( " $\"theta+=++4.96506923\"$
\n" ); document.write( " $\"theta+=284.295008\"$ ° \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );