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If the vector b = 3j + 4k is written as the sum of a vector b_1 parallel to a = i + j and a vector b_2 perpendicular to a , thenb_{1 }× b_2 is equal to:

Answer» If the vector b = 3j + 4k is written as the sum of a vector b_1 parallel to a = i + j and a vector b_2 perpendicular to a , thenb_{1 }× b_2 is equal to:


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