Q38 of 55 Page 35

Fill in the blanks

The principal value of is ________.

The principal value of is .


Principal value of cos-1 x is [0, π]


Let,



As,


So,


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36

The number of real solutions of the equatio is

 37

If cos–1x > sin–1 x, then

 39

Fill in the blanks

The value of is __________.

 40

Fill in the blanks

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