document.write( "Question 396007: How do I solve the following question: 8 sin cube x - 18 sin square x + 13 sinx - 3 = 0, xE[-pi/2, pi)? \n" ); document.write( "
Algebra.Com's Answer #281027 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Sub y for sin(x) \n" ); document.write( " \n" ); document.write( "You can see that 8+13 = -(-18-3) so f(-1) = 0 and y=1 is a zero. \n" ); document.write( "Divide by (y-1) and solve the quadratic. \n" ); document.write( "Sub sin(x) for y. \n" ); document.write( " |