document.write( "Question 824915: Find the value of x for which the statement csc(7x+9)=sec(5x) is true \n" ); document.write( "
Algebra.Com's Answer #497062 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Find the value of x for which the statement csc(7x+9)=sec(5x) is true \n" ); document.write( "csc(7x+9)=sec(5x) \n" ); document.write( "1/sin(7x+9)=1/cos(5x) \n" ); document.write( "Identity:cosA=sin(90-A) \n" ); document.write( "1/sin(7x+9)=1/sin(90-5x) \n" ); document.write( "7x+9=90-5x \n" ); document.write( "7x+9+5x=90 \n" ); document.write( "12x=81 \n" ); document.write( "x=81/12=6.75 \n" ); document.write( "Note: This supersedes an earlier solution. \n" ); document.write( " |