" Range of "sin^(-1)x-cos^(-1)x" is "

Range of sin^(-1)x is

Column I, Column II Range of f(x)=sin^(-1)x+cos^(-1)x+cot^(-1)xi s , p. [0,pi/2]uu[pi/2,pi] Range of f(x)= cot^(-1)x+tan^(-1)x+cos e c^(-1)xi s , q. [pi/2,(3pi)/2] Range of f(x)=cot^(-1)x+tan^(-1)x+cos^(-1)xi s , r. [0,pi] Range of f(x)= sec^(-1)x+cos e c^(-1)x+sin^(-1)xi s , s. [(3pi)/4,(5pi)/4]

Column I, Column II Range of f(x)=sin^(-1)x+cos^(-1)x+cot^(-1)xi s , p. [0,pi/2]uu[pi/2,pi] Range of f(x)= cot^(-1)x+tan^(-1)x+cos e c^(-1)xi s , q. [pi/2,(3pi)/2] Range of f(x)=cot^(-1)x+tan^(-1)x+cos^(-1)xi s , r. [0,pi] Range of f(x)= sec^(-1)x+cos e c^(-1)x+sin^(-1)xi s , s. [(3pi)/4,(5pi)/4]

Range of cos^(-1)x is

Range of cos^(-1)x is :

Range of sin^(-1)x+cos^(-1)x+tan^(-1)x is

Range of sin^(-1)x+cos^(-1)x+tan^(-1)x is [a pi,b pi] ,then the value of a+b=

Range of sin^(-1)x+cos^(-1)x+tan^(-1)x is [a pi, b pi] then the value of a+b =

Range of sin^(-1)x+cos^(-1)x+tan^(-1)x is [a pi,b pi], then the value of a