simplify

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- November 19th 2007, 12:14 PMperashsimplify
simplify

- September 17th 2013, 11:39 PMbrosnan123Re: simplify
Solution:-

(tan1/cos2)+(tan2/cos4)+...............+(tan128/cos256)

we can write it ? n=1 to 128 (tan n/cos 2n)

there for ? n=1 to 128 (tan n/cos 2n)=504.05