Mark the tick against the correct answer in the following:
The principal value of cosec-1(2) is
To Find: The Principle value of 
Let the principle value be given by x
Now, let x =
cosec x =2
cosec x=cosec(
) (
)
x = 
1
Mark the tick against the correct answer in the following:
The principal value of cosec-1(2) is
To Find: The Principle value of
Let the principle value be given by x
Now, let x =
cosec x =2
cosec x=cosec() ()
x =