Question: Find limit lim cos ( 321 ) - 1 not allow to use & lto spital rule 2 2 use devivatives of Lim Cos (

Find limit lim cos ( 321 ) - 1 not allow to use & lto spital rule 2 2 use devivatives of Lim Cos ( 371 ) - 1 cos ( 3 x ) + 1 = lim cos ( 3 n ) _ 12 n -70 x 2 Cos ( 320 ) + 1 x 2 ( cos (3 x ) + 1 ) tim 1( 1 - Cos 3 1 ) tim 1 . ( sin 3 n ) = 2 2 ( cos ( 3 n ) + 1 ) 2 8 . x 2 ( cos ( 3 # ) + 1 ) Sin 3x Sin 3 x 2 cas ( am)+1 )

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