Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

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**alex77****Member**- Registered: 2019-12-02
- Posts: 8

https://ibb.co/CmVWqm1

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**alex77****Member**- Registered: 2019-12-02
- Posts: 8

No one?

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**George,Y****Member**- Registered: 2006-03-12
- Posts: 1,372

I suggest you first thing first, simplify the fraction

i.e. k^(1/3)/k^2 = k^(-5/3)

Then you can try add them together?

**X'(y-Xβ)=0**

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