trippychill
trippychill trippychill
  • 23-01-2020
  • Mathematics
contestada

evaluate 1/2a^-4b^2 for a =-2 and b=4
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sqdancefan
sqdancefan sqdancefan
  • 23-01-2020

Answer:

  1/2

Step-by-step explanation:

Put the numbers where the corresponding variables are and do the arithmetic.

  1/2(-2)^(-4)·(4)^2 = 1/2(4^2/(-2)^4) = 1/2(16/16) = 1/2

__

We used the rule of exponents ...

  a^-b = 1/(a^b)

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