Question

evaluate : - 2 by 7 to the power - 4 Multiply by - 5 by 2 to the power 2​

Answer 1

Step-by-step explanation:

${ (\frac{ - 2}{7} )}^{ - 4} \times { (\frac{ - 5}{2}) }^{2} = {( \frac{ - 7}{2} )}^{4} \times { (\frac{ - 5}{2} )}^{2}$

$= \frac{2401}{16} \times \frac{25}{4} = \frac{60025}{64}$