lim 1 - cos (Ilh) h -> d cos2 (7h ) - 1 Q lim ac sina 4 lim Sinx (use squeeze theorem) Jim fla) if yx-1 I f ( x) 5 fras Evaluate the limit f ( x ) : 5 10 x +8 DC 2 - 4 X > 1 find 13 if ac 9 1 im x+3 7 - - 4 - a 2c+ 4