Writing a fraction as x n I came across this fraction after practising with bunch for a while. How do I write this fraction 1 x a as x n What happens to the a? I'm confused.

Question

Writing a fraction as       x    n  I came across this fraction after practising with bunch for a while. How do I write this fraction      1          x      a      as      x    n  What happens to the   a? I&#039;m confused.

vard6vv · Accepted Answer

By definition:      1          x      a        =      x          −      a      So   n  =  −  a. The       x          −      a       form is usually used when there arises the need to save space.

reryfaikear · Accepted Answer

You want to find   n such that      x    n    =      1          x      a            x    n        x    a    =  1      x          n      +      a        =  1So, you have to take   n such that   n  +  a  =  0, i.e.   n  =  −  a

Writing a fraction as x n </msup> I came across this fraction after practising

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