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use properties of natural exponential and logarithm functions to obtain: a. x^-a = 1/x^a b. (xy)^a...

use properties of natural exponential and logarithm functions to obtain:
a. x^-a = 1/x^a
b. (xy)^a = (x^a)(y^a)
c. 1^a = 1
d. x^(a+b) = (x^a)(x^b)
e. (x^a)^b = x^ab = (x^b)^a

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