" yes "1." (iii) "int_(1)^(2)sqrt(1+x)dx

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

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

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

" (iii) "1=int_(0)^(1)(x-1)(x+2)dx

int(1)/(sqrt(1+x^(2)))dx

int(1)/(sqrt(x^2)-1)dx

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

int(1)/(sqrt(2x-1))dx

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

Evaluate the following integrals. (i) int 1/((x - 2)^2 + 1)dx " " (ii) int (x^2)/(x^2 + 5)dx " " (iii) int 1/(sqrt(1 + 4x)^2)dx