int_(0)^(1)(5x^(3))/(sqrt(1-x^(8)))dx

int_(0)^(1)(4x^(3))/(sqrt(1-x^(8)))dx=

int_(0)^(1)(x^(4))/(sqrt(1-x^(5)))dx

int_(0)^(1)(x^(3))/(sqrt(1+8x^(4)))dx

int_(0)^(1)((3x^(2))/(sqrt(1-x^(6)))+(4x^(3))/(sqrt(1-x^(8)))+(5x^(4))/(sqrt(1-x^(10)))+...." to "n" terms ")dx=

int_(0)^(1)x^(3)sqrt(1-x^(2))dx=

int_(0)^(1)x^(3)sqrt(1-x^(2))dx=

int_(0)^(1)(dx)/(3sqrt(x))