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20-02-2021
Mathematics

contestada

PLEASE HELP

Problem down below

Respuesta :

ahmedmido1595 ahmedmido1595

20-02-2021

Answer:

[tex]50unit^{2}[/tex]

Step-by-step explanation:

Δ=

[tex]||\frac{1}{2} \left[\begin{array}{ccc}1&1&1\\7&9&1\\15&3&1\end{array}\right]||= ||-50||=50unit^{2}[/tex]

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