September 2018 1 12 Report
* (senx + cosec)^2= sen^2x + cotg^2x+3
senx 1 + cosx
------- ----------- = 2 cosec x
1 + cosx senx


cosec x
----------- = cos x
cotg x + tag x



sec^4 x- sec^2 x = tag^4 x - tag^2x



sen^2x + sen2x tag^2x= tag^2x

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