document.write( "Question 813888: I am struggling with converting trig identities. The problem I have is cos(theta)=u/3 and I am supposed to come up with the remaining 5 identities. I was able to get sin(theta)=(sqroot of 9-u^2)/u and tan(theta)=(sqroot of 9-u^2)/u but when I try the cot, sec, and csc all of my answers are wrong. for example i put cot(theta)=u/(sqroot of 9-u^2) because cot is the reciprocal of tan. please show me what I'm doing wrong. \n" ); document.write( "
Algebra.Com's Answer #490028 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi, Perhaps it is the format
\n" ); document.write( "Re Reply: Generally, leaving a radical in the denominator is unacceptable
\n" ); document.write( " as the correct answer, as rational denominators are wanted.
\n" ); document.write( " cosθ = \"u%2F3\" secθ = \"3%2Fu\"
\n" ); document.write( " sinθ = \"sqrt%289-u%5E2%29%2F3\" cscθ = \"3%2Fsqrt%289-u%5E2%29+=+3sqrt%289-u%5E2%29%2F%289-u%5E2%29\"
\n" ); document.write( " tanθ = \"sqrt%289-u%5E2%29%2Fu\" cotθ = \"+u%2Fsqrt%289-u%5E2%29=+%28u%2Asqrt%289-u%5E2%29%29%2F%289-u%5E2%29+\" \n" ); document.write( "
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