6 47 48 If y 2log r tan RX 4 then is 4 dy dx Evaluate lim

Last updated: 3/15/2023

6 47 48 If y 2log r tan RX 4 then is 4 dy dx Evaluate lim cos x n n wi Evaluate lim cos n n when n is an integer sin x sin 5x f x cos x cos 5x I if x T k if x 4 4 Fin k if f is continuous at x