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lim →0[cos−1(3 )−cot−1( ) 3 −1] lim →0+ ( 2 −4 ) limx→0+ (e2x−4x)πx
lim →0[cos−1(3 )−cot−1( ) 3 −1]
lim →0+ ( 2 −4 ) limx→0+ (e2x−4x)πx