Vincen Legendary Member View User Profile Posts: 2898 Joined: Thu Sep 07, 2017 2:49 pm Thanked: 6 times Followed by:5 members What is the value of \(2^x + 2^{-x}?\) by Vincen » Thu Sep 09, 2021 6:34 am Timer 00:00 Your Answer A B C D E Global Stats What is the value of \(2^x + 2^{-x}?\) (1) \(x < 0\) (2) \(4^x + 4^{-x} = 23\) Answer: B Source: Official Guide Top Quote
