document.write( "Question 605981: how do you solve, 4cos^x-5sinx-5=0 \n" ); document.write( "
Algebra.Com's Answer #382070 by lwsshak3(11628)\"\" \"About 
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how do you solve, 4cos^2x-5sinx-5=0
\n" ); document.write( "for 0< x < 2π
\n" ); document.write( "4(1-sin^2)-5sin-5=0
\n" ); document.write( "4-4sin^2-5sin-5=0
\n" ); document.write( "-4sin^2-5sin-1=0
\n" ); document.write( "4sin^2+5sin+1=0
\n" ); document.write( "(4sin+1)(sin+1)=0
\n" ); document.write( "4sin+1=0
\n" ); document.write( "sinx=-1/4
\n" ); document.write( "x=194.48º and 345.52º
\n" ); document.write( "or
\n" ); document.write( "sinx+1=0
\n" ); document.write( "sinx=-1
\n" ); document.write( "x=180º
\n" ); document.write( " \n" ); document.write( "
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