document.write( "Question 1122857: Can someone please help me solve these two problems for THETA θ\r
\n" ); document.write( "\n" ); document.write( "sin^4 2θ - 2 sin^2 2θ = -1\r
\n" ); document.write( "\n" ); document.write( "(3tan 3θ)^2 - 27 = 0 \n" ); document.write( "

Algebra.Com's Answer #739031 by ikleyn(52794) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( " -  = -1  <====>  (is equivalent to) \r\n" );
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document.write( " = 0  <====>  (is equivalent to)\r\n" );
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document.write( " = 0  <====>  (is equivalent to)\r\n" );
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document.write( " = 0  <====>  (is equivalent to) \r\n" );
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document.write( " = 1   <====>  (is equivalent to)\r\n" );
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document.write( " = +/- 1.\r\n" );
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document.write( "    Case 1.   = 1   is equivalent to   = , , , . . . , ,  where n is any integer.\r\n" );
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document.write( "             General solution for this case is   = ,  where n is any integer.\r\n" );
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document.write( "    Case 2.   = -1   is equivalent to   = , , , . . . , ,  where n is any integer.\r\n" );
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document.write( "             General solution for this case is   = ,  where n is any integer\r\n" );
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document.write( "Answer.  Any angle of the set  ,   is the solution, where k is any integer.\r\n" );
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