write tan-1 ( 1/root(a2*x2) in simplest form Share with your friends Share 0 Ishwarmani answered this Dear student, We have,y=tan-11a2x2=tan-11axLet x=cotAa or A=cot-1axNow,y=tan-1aacotA=tan-1tanA=A=cot-1ax Regards 2 View Full Answer