document.write( "Question 1073708: how do you find all the solutions for the interval sinx cosx - cosx = 0, with the interval [0, 2pi]? \n" ); document.write( "
Algebra.Com's Answer #688565 by rothauserc(4718)\"\" \"About 
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sinx cosx - cosx = 0
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\n" ); document.write( "factor the left side of =
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\n" ); document.write( "cosx * (sinx - 1) = 0
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\n" ); document.write( "there are two equations
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\n" ); document.write( "1. cosx = 0
\n" ); document.write( "x = 90 + 180 * n(1) where n(1) belongs to the integers(Z)
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\n" ); document.write( "2. sinx - 1 = 0
\n" ); document.write( "sinx = 1
\n" ); document.write( "x = 90 + (2 * 180 * n(2) where n(2) belongs to Z
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\n" ); document.write( "we are asked for solutions on the interval [0, 360]
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\n" ); document.write( "1. 90, 270
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\n" ); document.write( "2. 90
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