document.write( "Question 923529: Determine all solutions of the equation in radians
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document.write( "find cosx/2, given that sec x = 4 and x terminates in 0
Algebra.Com's Answer #560105 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! Determine all solutions of the equation in radians \n" ); document.write( "find cosx/2, given that sec x = 4 and x terminates in 0 \n" ); document.write( "cosx=1/secx=1/4 (In quadrant I where cos>0) \n" ); document.write( " \n" ); document.write( "cos(x/2)=√(5/8) \n" ); document.write( "use inverse cos key on calculator set to radians,then punch in √(5/8) \n" ); document.write( "cos(x/2)≈0.659 radians |