document.write( "Question 1138864: Given that sinx = 3/5 and cosy = 7/25, with x and y both being Quadrant I angles, find sin2y. \n" ); document.write( "

Algebra.Com's Answer #756649 by ikleyn(52914) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "In order for to solve this problem and to answer this question, you do not need the info related to sin(x) - it is IRRELEVANT.\r
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document.write( "sin(2y) = 2*sin(y)*cos(y)\r\n" );
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document.write( "    cos(y) =  =  =  = .\r\n" );
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document.write( "Therefore,\r\n" );
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document.write( "sin(2y) = 2*sin(y)*cos(y) =  = .    ANSWER\r\n" );
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