please answer this...
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abhi7330445677:
give some explanation on step 3
Its the multiplucative inverse of sec@ that is equal to cos@ and similiar of csc@
i know that sec@=1/Cos@. and cosec@=1/sin@
so when we multiply them ,i think they will get cancelled
You may opt that way of doing thw sum. But i thought to do it myway *SIMPLE*
kk
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