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Find a 2 * 2 determinant formula for the area of the triangle in the xy-plane with vertices at (0, 0), (a1, a2), and (b1, b2). Explain your work.

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Find a 2 * 2 determinant formula for the area of the triangle in the xy-plane with vertices at (0, 0), (a1, a2), and (b1, b2). Explain your work.

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