document.write( "Question 325522: Find all solutions for the following equations.Record your answer in exact form where possible.
\n" ); document.write( "(a) $\"2\"$ $\"%22cos%22%5E2x\"$ $\"%22%22=%22%22\"$ $\"-3\"$ $\"%22sin%22\"$ $\"x\"$
\n" ); document.write( "(b) $\"%22sin%22\"$ $\"x\"$ $\"%22%22%2A%22%22\"$ $\"%22tan%22\"$ $\"x\"$ $\"%22%22=%22%22\"$ $\"%22sin%22\"$ $\"x\"$
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\n" ); document.write( " Thinking I may have to us Half-angle formula on these (not sure) \n" ); document.write( "

Algebra.Com's Answer #233857 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!
Find all solutions for the following equations.Record your answer in exact form where possible.
\n" ); document.write( "(a) $\"2\"$ $\"%22cos%22%5E2x\"$ $\"%22%22=%22%22\"$ $\"-3\"$ $\"%22sin%22\"$ $\"x\"$
\n" ); document.write( "(b) $\"%22sin%22\"$ $\"x\"$ $\"%22%22%2A%22%22\"$ $\"%22tan%22\"$ $\"x\"$ $\"%22%22=%22%22\"$ $\"%22sin%22\"$ $\"x\"$
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\n" ); document.write( " Thinking I may have to us Half-angle formula on these (not sure)
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document.write( "No you don't need those.\r\n" );
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document.write( "Use the identity:   written as  to rewrite the left side:\r\n" );
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document.write( "Get 0 on the right:\r\n" );
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document.write( "Rearrange terms on the left in descending order:\r\n" );
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document.write( "To make factoring easier, multiply through by -1\r\n" );
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document.write( "Setting the first factor = 0\r\n" );
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document.write( "This is impossible because no sine can be greater than 1 or\r\n" );
document.write( "less than -1.\r\n" );
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document.write( "Setting the second factor = 0\r\n" );
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document.write( "All angles in QIII and QIV  with reference angle 30� (or \r\n" );
document.write( "if your teacher wants radians) are solutions.\r\n" );
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document.write( "In degrees:\r\n" );
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document.write( "In radians:\r\n" );
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document.write( "Get 0 on the right:\r\n" );
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document.write( "Factor out  on the left side:\r\n" );
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document.write( "Setting the first factor = 0\r\n" );
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document.write( "All angles with reference angle 0 are solutions:\r\n" );
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document.write( "In degrees:\r\n" );
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document.write( "In radians:\r\n" );
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document.write( "Setting the second factor = 0\r\n" );
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document.write( "All angles in QI and QIII  with reference angle 45� (or \r\n" );
document.write( "if your teacher wants radians) are solutions.\r\n" );
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document.write( "In degrees:\r\n" );
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document.write( "In radians:\r\n" );
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document.write( "Edwin

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