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Determine whether the given vectors are orthogonal, parallel, or neither. (a) a = ⟨9, 6⟩, b = ⟨−4, 6⟩ orthogonal parallel neither (b) a = ⟨4, 7, −2⟩, b = ⟨3, −1, 7⟩ orthogonal parallel neither (c) a = −4i + 12j + 8k, b = 3i − 9j − 6k orthogonal parallel neither (d) a = 2i − j + 2k, b = 3i + 2j − 2k orthogonal parallel neither

Determine whether the given vectors are orthogonal, parallel, or neither. (a) a = ⟨9, 6⟩, b = ⟨−4, 6⟩ orthogonal parallel neither (b) a = ⟨4, 7, −2⟩, b = ⟨3, −1, 7⟩ orthogonal parallel neither (c) a = −4i + 12j + 8k, b = 3i − 9j − 6k orthogonal parallel neither (d) a = 2i − j + 2k, b = 3i + 2j − 2k orthogonal parallel neither

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Determine whether the given vectors are orthogonal, parallel, or neither. (a) a = ⟨ 9 , 6 ⟩ , b = ⟨ − 4 , 6 ⟩ orthogonal parallel neither (b) a = ⟨ 4 , 7 , − 2 ⟩ , b = ⟨ 3 , − 1 , 7 ⟩ orthogonal parallel neither (c) a = − 4 i + 12 j + 8 k , b = 3 i − 9 j − 6 k orthogonal parallel neither (d) a = 2 i − j + 2 k , b = 3 i + 2 j − 2 k orthogonal parallel neither

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