document.write( "Question 1020631: 3 sin^2 30° + 3 cos^2 30° \n" ); document.write( "

Algebra.Com's Answer #636487 by ikleyn(52815) $\"\"$ $\"About$

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\n" ); document.write( "3 sin^2 30° + 3 cos^2 30°
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document.write( " = 3,\r\n" );
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document.write( "since  = 1 for any angle .\r\n" );
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