Q. The function $f(x) = sec\lbrack\log{(x + \sqrt{1 + x^{2})}}\rbrack$ is
A) Odd
B) Even
C) Neither odd nor even
D) Constant
Explanation
(b)
$f(x) = \sec{\left( In\ \left( x + \sqrt{1 + x^{2}} \right) \right) = \sec}$(odd function)=even function
$\because$ sec is an even function
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.