(2) int xsqrt (x-1)dx;

求int xsqrt (x-1)dx.求.

(13)int(dx)/(xsqrt(x^2)-1);(13)$\int\frac{dx}{x\sqrt{x^{2}-1}};$

int dfrac (dx)(xsqrt {{x)^2-1}}=____________________________

(37 ) int dfrac (dx)(xsqrt {{x)^2-1}} ,

37 int dfrac (dx)(xsqrt {{x)^2-1}}

(37) int dfrac (dx)(xsqrt {{x)^2-1}}

(9) int dfrac (1)(xsqrt {{x)^2-1}}dx

(int )_(1)^edfrac (dx)(xsqrt {1-{(ln x))^2}}..

int dfrac (ln x-1)({x)^2}dx=______________________

求(int )_(1)^+infty dfrac (dx)(xsqrt {2{x)^2-1}}=求