Carcass wrote:
\(4^x + 4^{-x} = 2\) What is the value of x?
A. -1
B. -1/2
C. 0
D. 1/2
E. 1
Solve this question in 5 seconds!
\(4^x + 4^{-x} = 2\)
\(x\) cannot be a +ve number, because it will give you a number greater than 4
\(x\) cannot be a -ve number, it will again give you a number greater than 4
\(x\) can only be zero
Anything raised to the power zero is \(1\)
Hence, option C
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I hope this helps!
Regards:
Karun Mendiratta
Founder and Quant Trainer
Prepster Education, Delhi, Indiahttps://www.instagram.com/prepster_education/