Find x if tan-1 4 + cot-1 x = pi / 2. Share with your friends Share 0 Aditya Kumar Sinha answered this x = 1/4 because tan-1x + cot-1x = pi/2 for all values of x belong to R -17 View Full Answer Piyush answered this tan^-1(1/4)+cot^-1(x)=π/2 -7 Ajay Kumar Mahato answered this I hope it works -2 Twinkle answered this Easy method...✌ -2 Harsha answered this Doubts are sold out 0