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22 April, 01:51

What is each expression written using each base only once?

(7.57) ^ - 4 X (7.57) ^ 4

a. 8

b. 1

c. 0

d. 757^8

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Answers (1)
  1. 22 April, 03:48
    0
    (7.57) ^-4 * (7.57) ^4

    Add the exponents and keep the base:

    7.57^ (-4 + 4)

    7.57^0

    Anything to the power of 0 is one.

    1
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