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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