1.

If `-oo lt x le 0 then cos ^(-1)((1-x^(2))/(1+x^(2)))`equalsA. `2tan^(-1)x`B. `-2 tan^(-1)x`C. `pi-2 tan^(-1)x`D. `pi+2tan^(-1)x`

Answer» Correct Answer - B


Discussion

No Comment Found