Asked by Sharon
(-1)^1989-(-)^1988
Answers
Answered by
Steve
assuming both values are -1,
even powers of -1 are +1
odd powers are -1
so we have
-1 - +1 = -2
Or, you could factor out (-1)^1988 and have
(-1)^1988(-1 - 1) = (+1)(-2) = -2
even powers of -1 are +1
odd powers are -1
so we have
-1 - +1 = -2
Or, you could factor out (-1)^1988 and have
(-1)^1988(-1 - 1) = (+1)(-2) = -2
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