Q2 of 126 Page 140

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 =

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6

Write down the interval for the principal-value branch of each of the following functions and draw its graph:

cosec-1 x


 1

Mark the tick against the correct answer in the following:

The principal value of is


3

Mark the tick against the correct answer in the following:

The principal value of is


 4

Mark the tick against the correct answer in the following:

The principal value of is