Q52 of 303 Page 4

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

The set of values of .


We know that the value of cosec-1 (√3/2) is undefined as it is outside the range i.e. R-(-1,1).


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50

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of the expression , when .


 51

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the principal value of .


 53

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of for x < 0 in terms of cot–1(x).


 54

Answer each of the following questions in one word or one sentence or as per exact requirement of the question:

Write the value of cot–1(–x) for all x ∈ R in terms of cot–1x.