TRONG KHÔNG GIAN $ OXYZ$, CHO ĐIỂM $ $ M$\LEFT( { – 1;2;2} \RIGHT)$. ĐƯỜNG THẲNG ĐI QUA M VÀ SONG SONG VỚI TRỤC $ OY$ CÓ PHƯƠNG TRÌNH LÀ:
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Level:
Medium
Question Types: Multiple choice
Answers:
- $ \\\left\\\{ \\\begin{gathered} x = - 1 \\\hfill \\\\\\ y = 2 \\\hfill \\\\\\ z = 2 + t \\\hfill \\\\\\\\\end{gathered} \\\right.\\\left( {t \\\in \\\mathbb{R}} \\\right)$.
- $ \\\left\\\{ \\\begin{gathered} x = - 1 + t \\\hfill \\\\\\ y = 2 \\\hfill \\\\\\ z = 2 \\\hfill \\\\\\\\\end{gathered} \\\right.\\\left( {t \\\in \\\mathbb{R}} \\\right)$.
- $ \\\left\\\{ \\\begin{gathered} x = - 1 + t \\\hfill \\\\\\ y = 2 \\\hfill \\\\\\ z = 2 + t \\\hfill \\\\\\\\\end{gathered} \\\right.\\\left( {t \\\in \\\mathbb{R}} \\\right)$.
- $ \\\left\\\{ \\\begin{gathered} x = - 1 \\\hfill \\\\\\ y = 2 + t \\\hfill \\\\\\ z = 2 \\\hfill \\\\\\\\\end{gathered} \\\right.\\\left( {t \\\in \\\mathbb{R}} \\\right)$