solv all question for me

First Question: 1) Find - of the following: dx a) y = cos-1(-x4) b) y = ex sinx + In3x 2) Evaluate: sec(cos-1 3x ) = Second Question: 1) Compute the following limit: limx-. (1 - -)* 2) Find the area of the region enclosed by the curves : x = y2 - 25, x = 25 - y Third Question: Compute the following integrals: 1) f 2x ex dx 2) fx (2x + 1)' dx Fourth Question: Compute the following integrals: 1) f tan5 x sect x dx 2 ) S 1 VX 2 - : dx Fifth Question: Compute the following integral: (x'+x+3) tan (x) +x-1 x2+x+3 dx