Question

express as rational number :
$( - 2) {}^{ - 5}$
$( {5}^{ - 1} - {7}^{ - 1} ) {}^{ - 1}$
$( \frac{23}{25}) {}^{0}$
Answer all three fast plz.​

Answer 1

Step-by-step explanation:

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Answer 2

1. (-2)^-5 = 1/ -2^5 = 1/ -32


2. (5^-1 - 7^-1)^-1 = (1/ 5^1 - 1/ 7^1) ^-1 = (1/5-1/7 )^-1 = ( 7/35 - 5/35 )^-1 = (2/35)^-1= (35/2)^1 = 35/2 = 17.5

3. (23/25)^0= 1