[ ∫ {xdx}/{√{25-121x⁴}} ]
Use a u-substitution to integrate. Show all steps,
a) ( {1}/{22}sin{-1}(11x²)+C )
b) ( {1}/{22}sin{-1}(11x⁴)+C )
c) ( {1}/{22}sin{-1}({11}/{5}x²)+C )
d) ( {1}/{22}sin{-1}({11}/{5}x⁴)+C )