Q42 of 55 Page 35

Fill in the blanks

The principal value of tan–1 √3 is _________.

The principal value of tan–1 √3 is .


Principal value of tan-1 x is


Let,



As,


So,


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40

Fill in the blanks

If cos (tan–1x + cot–1 √3) = 0, then value of x is _________.

 41

Fill in the blanks

The set of values of is _________.

 43

Fill in the blanks

The value of is ________.

 44

Fill in the blanks

The value of cos (sin–1 x + cos–1 x), |x| ≤ 1 is ________.