Bereken
uit het hoofd (!) :
|
A. \(14\) |
|---|
| B. \(\frac27\) |
| C. \(3,5\) |
| D. \(42\) |
| E. \(7\) |
| F. \(\frac1{256}\) |
[ 2,3-6067 - op net sinds 17.4.10-(E)-17.10.2026 ]
Translation in E N G L I S H
Calculate by heart :
|
A. \(14\) |
|---|
| B. \(\frac27\) |
| C. \(3,5\) |
| D. \(42\) |
| E. \(7\) |
| F. \(\frac1{256}\) |
Oplossing - Solution
\(\large\text{De beste manier is : (56 = 14.4 )}\\\large\frac{56^5}{14^4\cdot 4^6}=\frac{14^5.4^5}{14^4.4^6}=\frac{14}{4}=...\\\\\large\text{Alternatieve manier : }\\\large\frac{56^5}{14^4\cdot 4^6}=\frac{56^4.56}{14^4.4^4.4^2}=\frac{56^4.56}{56^4.4^2}=\frac{56}{16}=\frac 72\)
