1.

The range of one branch of sin-1x, other than the principal value of branch.

Answer»

The principal value branch of y = cos-1x is 0, π

So one branch of cos -1x other than the principal branch is 2π, 3π.

Range of a function is the maximum and minimum value of a function. 

Hence the range of sin-1 x remains same for any branch. As it is a periodic function , so the maximum and minimum value will occur again and again at different branches.



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