If a → = 2 i ^ + 3 j ^ + 4 k ^ , a → ⋅ b → = 2 and a → × b → = 2 i ^ - k ^ , then b → is

Question

If a → = 2 i ^ + 3 j ^ + 4 k ^ , a → ⋅ b → = 2 and a → × b → = 2 i ^ - k ^ , then b → is, i ^ - 2 j ^ + k ^, 4 i ^ - 4 j ^ + 2 k ^, 1 2 3 i ^ + 7 j ^ + 9 k ^, 1 29 7 i ^ - 4 j ^ + 14 k ^

MARKS App · Accepted Answer

a → × b → = 2 i ^ - k ^ a → × b → × a → = 2 i ^ - k ^ × 2 i ^ + 3 j ^ + 4 k ^ 29 b → - 2 a → = 3 i ^ - 10 j ^ + 6 k ^ b → = 1 29 7 i ^ - 4 j ^ + 14 k ^

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