document.write( "Question 808645: I was hoping someone could check my answers on this problem.\r
\n" ); document.write( "\n" ); document.write( "Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5\r
\n" ); document.write( "\n" ); document.write( "I came up with:\r
\n" ); document.write( "\n" ); document.write( "sinx= $\"+sqrt%281-%28sqrt%28%282%29%29%2F2%29%2F2%29+\"$ \r
\n" ); document.write( "\n" ); document.write( "cosx= $\"+sqrt%281%2B%28sqrt%28%282%29%29%2F2%29%2F2%29+\"$ \r
\n" ); document.write( "\n" ); document.write( "tanx= $\"+sin+%28sqrt%28%282%29%29%2F2%29%2F%281%2Bcos+%28sqrt%28%282%29%29%2F2%29%29+\"$ \n" ); document.write( "

Algebra.Com's Answer #487155 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
Find the values of the 3 trigonometric functions (sin, cos, tan) for x=22.5
\n" ); document.write( "sin[22.5] = sin[45/2] = sqrt[(1-cos(45))]/2]
\n" ); document.write( "cos[22.5] = sin(45/2) = sqrt[(1+cos(45))/2]
\n" ); document.write( "tan[22.5] = tan(45/2) = sqrt[(1-cos(45))/(1+cos(45)]
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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