please help me with this calculus problem!

1) f(x ) = cos (x ) FIND f ' LX) 12 NAME (LAST , FIRST 2) FIND f ( ) FOR fox)= TAN"X 3 ) y= Xex FIND dy 41 fixI= sec x . FIND # ' LX ) dx 5 ) y = In (4X ) FIND y' 6 ) f (x) = 2 TAN ( JX ) FIND f ( x ) 7 ) f ( x ) = - X FIND f ( x ) 8) f ( x ) = cos* FIND f ( x ) X 2 9 ) y= cosh ( x ) FIND ax 10) y=5x+ 2x2- 3x + 1 FIND ull 11) fix) = COT ( 2 x ) FIND f (x ). 12) f(x ) = SIN"'X FIND f'(x ) 13) GIVEN X2 - 4# = 23. 8 FIND &X 14) GWEN X 2- y = 1 FIND y" *ELIMINATE y' IN YOUR ANSWER 5 ) FIND Jum SIN () 16) Fex ) - VI-X. USE THE LINEARIZATION X -0 4x L(X ) OF &CX) AT AND TO APPROXIMATE S