document.write( "Question 1115504: 7 sin^2 x - 14 sin x + 2 = -5
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Algebra.Com's Answer #730353 by ikleyn(52847) $\"\"$ $\"About$

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document.write( "7 sin^2 x - 14 sin x + 2 = -5  ====>\r\n" );
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document.write( "7*sin^2(x) - 14*sin(x) + 7 = 0  ====>\r\n" );
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document.write( "sin^2(x) - 2*sin(x) + 1 = 0  ====>\r\n" );
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document.write( " = 0  <====>\r\n" );
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document.write( "sin(x) = 1  <====>  x = ,  k = any integer 0, +/-1, +/-2, . . . \r\n" );
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