document.write( "Question 1126237: Solve the equation sin(x-20)=cos 42 for x, where 0
Algebra.Com's Answer #742544 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Solve the equation sin(x-20)=cos 42 for x, where 0 < x < 90 \n" ); document.write( "------------ \n" ); document.write( "sin(x-20)=cos(42) \n" ); document.write( "cos(A) = sin(90-A) ******* You have to know this \n" ); document.write( "sin(x-20) = sin(90-42) = sin(48) \n" ); document.write( "x-20 = 48 \n" ); document.write( "x = 68 degs\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |