simplify

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- Nov 19th 2007, 01:14 PMperashsimplify
simplify

- Sep 18th 2013, 12:39 AMbrosnan123Re: 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