Domain of function f(x) = √ {2 - {{sec }^{ - 1}}x} is

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1.Relation and Function

normal

Domain of the function $f(x) = \sqrt {2 - {{\sec }^{ - 1}}x} $ is

A

$\left( { - \infty , - 1} \right] \cup \left[ {1,\infty } \right)$

B

$\left( { - \infty , - 1} \right] \cup \left[ {\sec 1,\infty } \right)$

C

$\left( { - \infty ,\sec 2} \right] \cup \left[ {1,\infty } \right)$

D

$\left( { - \infty ,\sec 2} \right] \cup \left[ {\sec 1,\infty } \right)$

Solution

Standard 12

Mathematics

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