document.write( "Question 618337: prove that following is an identity
\n" ); document.write( "sin (2x) = 2cot x sin2x \n" ); document.write( "

Algebra.Com's Answer #388848 by jsmallt9(3758) $\"\"$ $\"About$

You can put this solution on YOUR website!
What you posted is not an identity. The only way sin(2x) could always be equal to 2cot(x)sin(2x) would be if 2cot(x) was always a 1. 2cot(x) is not always a 1. \n" ); document.write( "

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