2sec52xtan52x+c2 \sec \frac{5}{2} x \tan \frac{5}{2} x+c2sec25xtan25x+c
52tan52x+c\frac{5}{2} \tan \frac{5}{2} x+c25tan25x+c
25tan52x+c\frac{2}{5} \tan \frac{5}{2} x+c52tan25x+c
tan52x+c\tan \frac{5}{2} x+ctan25x+c