document.write( "Question 921678: xyz is a right angled triangle at y if
\n" ); document.write( "2yz = 4xy find
\n" ); document.write( "1- Sin power of 2 x - cos 2 z
\n" ); document.write( "2 sin x X Cos z - tan Z
\n" ); document.write( "how can i solve this ? \n" ); document.write( "
Algebra.Com's Answer #559137 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
xyz is a right angled triangle at y if
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\n" ); document.write( "\n" ); document.write( "1-sinēx - cosēz\r
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document.write( "2yz = 4xy\r\n" );
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document.write( "Divide both sides by 2y\r\n" );
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document.write( "z = 2x\r\n" );
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document.write( "x and z are complementary because they are\r\n" );
document.write( "the two acute angles of a right triangle.\r\n" );
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document.write( "So z+x = 90° and z = 90°-x\r\n" );
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document.write( "90°-x = 2x\r\n" );
document.write( "  90° = 3x\r\n" );
document.write( "  30° = x\r\n" );
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document.write( "And since z = 2x\r\n" );
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document.write( "z = 2(30°) = 60°\r\n" );
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document.write( "----\r\n" );
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document.write( "1 - sinēx - cosēz\r\n" );
document.write( "1 - sinē(30°) - cosē(60°)\r\n" );
document.write( "1 - \"%281%2F2%29%5E2\" - \"%281%2F2%29%5E2\"\r\n" );
document.write( "1 - \"1%2F4\" - \"1%2F4\"\r\n" );
document.write( "1 - \"1%2F2\"\r\n" );
document.write( "\"1%2F2\"\r\n" );
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document.write( "---\r\n" );
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document.write( "2sin(x)cos(z) - tan(z)\r\n" );
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document.write( "2sin(30°)cos(60°) - tan(60°)\r\n" );
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document.write( "\"2%281%2F2%29%281%2F2%29+-+sqrt%283%29\"\r\n" );
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document.write( "\"1%2F2+-+sqrt%283%29\"\r\n" );
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document.write( "\"%281-2sqrt%283%29%29%2F2\"\r\n" );
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document.write( "Edwin
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