Question

How do I evaluate: 4^-1 + 2^-3?

Answer 1

\[4^{-1} = \frac{1}{4}\]

\[2^{-3} = \frac{1}{2^3} = \frac{1}{8}\]

Answer 2

therefore \[4^{-1} + 2^{-3} = \frac{1}{4} + \frac{1}{8}\] got it?

Answer 3

\[1/4 + 1/2^3\]\[1/4+1/8\]\[2+1/8\]\[3/8\]

Answer 4

ohhh.. special thanks to @mathslover

Answer 5

my pleasure