int_(4)^(7)((11-x)^(3))/(x^(3)+(11-x)^(3))dx

int_(4)^(7)((11-x)^(2))/(x^(2)+(11-x)^(2))dx=

Evaluate: int_(3)^(8) ((11-x)^(2))/(x^(2)+(11-x)^(2))dx

int_(0)^(11)((11-x)^(2))/(x^(2)+(11-x)^(2))dx=

int_(0)^(11)((11-x)^(2))/(x^(2)+(11-x)^(2))dx=

Evaluate of each of the following integrals 15) : int_(-pi/4)^( pi/4)(x^(11)-3x^(9)+5x^(7)-x^(5)+1)/(cos^(2)x)dx

int_(3)^(7)sqrt((x-3)(7-x))dx=