Question
(-1) x (-1) x (-1) x (-1) x ... 80 times = ___
Answer:
:
When even number of negative integers aremultiplied,the product will be a positive integer.
(-1) x (-1) x (-1) x (-1) x ... 80 times
= (-1 ... 80 times)[1x 1x 1 x 1x ... 80 times]
= (+) (1x 1x 1 x 1x ... 80 times)
=1x 1x 1 x 1x ... 80 times
= 1
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:
When even number of negative integers aremultiplied,the product will be a positive integer.
(-1) x (-1) x (-1) x (-1) x ... 80 times
= (-1 ... 80 times)[1x 1x 1 x 1x ... 80 times]
= (+) (1x 1x 1 x 1x ... 80 times)
=1x 1x 1 x 1x ... 80 times
= 1
Was this answer helpful ?
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