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What is the problem?

\displaystyle \prod_{i=1}^{n} {\beta}{\alpha}(1 - e^{- (x - \mu)\beta}^{\alpha -
  1}e^{- (x - \mu)\beta}

I've been trying to change {\beta}{\alpha} and (1 - e^{- (x - \mu)\beta}^{\alpha - 1}

3
  • It would help if you copied the actual error message, but I think it's complaining about e^{}^{}. (Also, you can use backticks to typeset code, and {\beta} doesn't do anything useful.
    – Teepeemm
    Jul 30 '18 at 12:53
  • Double superscript. l.160 ...{\beta}{\alpha}(1 - e^{- (x - \mu)\beta}^ {\alpha - 1}e^{- (x - \mu)... Jul 30 '18 at 12:55
3

Looks like some curly brackets are missing:

$ \prod_{i=1}^{n} {\beta}{\alpha}(1 - e^{{- (x - \mu)\beta}^{\alpha - 1}}e^{- (x
  - \mu)\beta}$

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