Question #47155

1 Answer
EZ as pi
Nov 3, 2016

n-1n−1

Explanation:

{n-1-[n-1color(blue)(-(n-1))]}{n−1−[n−1−(n−1)]}

={n-1-[n-1color(blue)(-n+1)]}={n−1−[n−1−n+1]}

={n-1color(red)(-[n-1-n+1]}" "rarr {n-1-0}={n−1−[n−1−n+1] →{n−1−0}

={n-1color(red)(-n+1+n-1)}={n−1−n+1+n−1}

={n-1}={n−1}

Related questions
See all questions in PEMDAS
Impact of this question
2318 views around the world
You can reuse this answer
Creative Commons License