(chatquestion)...8. (1) X9. Show that, the integral dx 1 + r5 can be reduced i tan-x dr x* + ax + 1 k1, k2, a, b, are constants u + ki dx + k2 x² + bx + 1 and c is a constant of integration. + c, where u is a fina log -2 9. (i)

Question