TS EAMCET 14-Sep-2020 Shift 1 Solved Paper
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Question : 21 of 160
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For n∊ N, if f ( n ) = ( c o s n x ) ( s e c x ) n g ( n ) = ( s i n n x ) ( s e c x ) n
f ( 2020 ) − f ( 2019 ) + ( t a n x ) g ( 2019 ) =
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