document.write( "Question 436688: I need help figuring out this trigonometry problem.
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document.write( "Fin,d to the nearest degree, all values of x in the interval 0 degrees < x < 360 degrees that satisfy the equation 6cos^2x - 5sinx - 5 = 0 \n" );
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Algebra.Com's Answer #302082 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! I need help figuring out this trigonometry problem. \n" ); document.write( "Fin,d to the nearest degree, all values of x in the interval 0 degrees < x < 360 degrees that satisfy the equation 6cos^2x - 5sinx - 5 = 0 \n" ); document.write( "=================== \n" ); document.write( "6(1-sin^2)-5sin - 5 = 0 \n" ); document.write( "-6sin^2-5sin+1 = 0 \n" ); document.write( "---- \n" ); document.write( "6sin^2+5sin-1 = 0 \n" ); document.write( "(6sin-1)(sin+1) = 0 \n" ); document.write( "sin(x) = 1/6 or sin(x) = -1 \n" ); document.write( "---------- \n" ); document.write( "x = 9.59 degrees or 170.41 degrees or 270 degrees. \n" ); document.write( "==================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |