Als
x = 0,2
is
x + x−1
gelijk aan 		A.  1
B.  \(\frac {5} {2} \)
C.  \(\frac {7} {10} \)
D.  \(\frac {11} {5} \)
E.  \(\frac {26} {5} \)
                 

[ 1-6796 - op net sinds 20.3.2020-(E)-24.10.2023 ]

Translation in   E N G L I S H

If
x = 0,2
then
x + x−1
equals 		A.   1
B.   \(\frac {5} {2} \)
C.   \(\frac {7} {10} \)
D.   \(\frac {11} {5} \)
E.   \(\frac {26} {5} \)

Oplossing - Solution

\(0,2 + 0,2^{-1} = \frac {2} {10} + \frac {10} {2} = \frac {2} {10} + \frac {50} {10} = \frac {52} {10} = \frac {26} {5}= 5,2\)