Please evaluate or answer this Logarithmic and Trigonometric Integration

1.) Sosch ? ( 1 - x 2 ) . xdx 2 . ) | sech # x tanh - xdx 3. ) sech ? ( Inx ) dx X 4 . ) coth ( 1 - 2x) dx 5. ) ( csch = xcoth z xdx 6 . ) sinh 4x dx cosh 2x