3 questions to be answered use only derivatives rules

Evaluate the limit lim - tan (3 X) Enter asimplified multiple Of ToroD or - DD 13 Evaluate the limit Lim 10x 3 - 2x -10X X - DD 7-5X- 3X Consider the fuction fcXJ = 4 v X + 6 on the interval ( 317], Find the average or mean slope of the fuctions on this interval ; to 3 decimal places . By the mean Vale Theorem, we know there exists ac in th Open interval (3, 7) such that J'las is equal to this mean. Slope For this problem, there is only one ( that works . Find it , and round to 3 3 decimal Places