Seudónimo Seudónimo

14-03-2017
Mathematics

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Is it true that -a^n = (-a)^n IF:

a = 3;
n = 2, 3, 4, 5?

Respuesta :

14-03-2017

No, it is not true

Because (-a)^n some times gives a^n (with even powers) and other times gives -a^n (with odd powers)

But - a^n always gives negative!

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