Q. 6 C5.0( 2 Votes )

Evaluate each of the following:

Answer :

The value of cot is 1.

The question becomes cot–1(1).

Let cot–1(1) = y

cot y = 1

= cot = 1

The range of principal value of cot–1is (0, π)

and cot = 1

The value of cot–1(cot) is .

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