Using the definations of sec, cosec, cot and tan simplify the following expression;

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- June 20th 2009, 08:58 AMTweetysimplify trig expression
Using the definations of sec, cosec, cot and tan simplify the following expression;

- June 20th 2009, 09:02 AMmalaygoel
- June 20th 2009, 09:05 AMTweety
Thanks,

thats also the same answer I got but my book says the correct answer is cosx

could the book be wrong? - June 20th 2009, 09:25 AMskeeter
- June 20th 2009, 12:47 PMTweety