SOLUTION: 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)=(sq

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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.
Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi, Perhaps it is the format

Re Reply: Generally, leaving a radical in the denominator is unacceptable

 as the correct answer, as rational denominators are wanted.

 cosθ  =    secθ  =  

 sinθ  =   cscθ  = 

 tanθ  =     cotθ  =  

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