TRONG KHÔNG GIAN $ OXYZ$, MỘT VECTƠ PHÁP TUYẾN CỦA MẶT PHẲNG $ \FRAC{X}{{ – 2}} + \FRAC{Y}{{ – 1}} + \FRAC{Z}{3} = 1$ LÀ.

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Medium

Question Types: Multiple choice

Answers:

- $ \\\overrightarrow n = \\\left( { - 2;\\\, - 1;\\\,3} \\\right)$

- $ \\\overrightarrow n = \\\left( {2;\\\, - 1;\\\,3} \\\right)$

- $ \\\overrightarrow n = \\\left( { - 3;\\\, - 6;\\\, - 2} \\\right)$

- $ \\\overrightarrow n = \\\left( {3;\\\,6;\\\, - 2} \\\right)$