(ii) ` int (sqrt(x^2 -7)) /x dx`

int 1/( sqrt(x^2+7)) dx

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

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

int(1)/(sqrt(x^(2)+7))dx

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

int sqrt((x)/(a+2))dx

Evaluate the following : (i) int(x+(1)/(x))^(3//2)((x^(2)-1)/(x^(2)))dx " (ii) " int(sqrt(2+logx))/(x)dx (iii) int((sin^(-1)x)^(3))/(sqrt(1-x^(2)))dx " (iv) " int(cotx)/(sqrt(sinx))dx

(i) int sqrt(a^2-x^2) dx=____ (ii) int sqrt(x^2-a^2) dx= _____ (iii) int sqrt(a^2+x^2) dx=____