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1. Classify 4x^2 - 2y^2 + 16z = 0 and describe its traces. 2. Classify 4x^2 - 9y^2 + 6z^2 = 0 and describe its

1. Classify 4x^2 - 2y^2 + 16z = 0 and describe its traces. 2. Classify 4x^2 - 9y^2 + 6z^2 = 0 and describe its traces. 3. Classify 4x^2 + z^2 - 4y = 0 and describe its traces. 4. Classify 9x^2 + 4y^2 - 36z^2 - 18x + 24y - 144z - 135 = 0 and describe its traces

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