document.write( "Question 692462: Verify that (sinx)/(1-cosx)+(1-cosx)/sinx = 2cscx \n" ); document.write( "

Algebra.Com's Answer #427889 by mouk(232) $\"\"$ $\"About$

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\n" ); document.write( "= $\"+%28+sin%5E2%28x%29%2B%281-2cosx%2Bcos%5E2%28x%29%29+%29+%2F+%281-cosx%29%28sinx%29+\"$
\n" ); document.write( "= $\"+%28+sin%5E2%28x%29%2B+cos%5E2%28x%29%2B1+-+2cosx+%29+%2F+%281-cosx%29%28sinx%29+\"$
\n" ); document.write( "= $\"+%28+1%2B+1+-+2cosx+%29+%2F+%281-cosx%29%28sinx%29+\"$
\n" ); document.write( "= $\"+%28+2+-+2cosx+%29+%2F+%281-cosx%29%28sinx%29+\"$
\n" ); document.write( "= $\"+2%281+-+cosx%29+%2F+%281-cosx%29%28sinx%29+\"$
\n" ); document.write( "= $\"+2+%2F+sinx+\"$
\n" ); document.write( "= $\"+2+cscx+\"$ QED \n" ); document.write( "

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