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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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The scalar product of the vector \( \hat i + \hat j + \hat k \) with the unit vector along the sum of the vectors \( 2\hat i + 4\hat j - 5\hat k \) and \( \lambda \hat i + 2\hat j + 3\hat k\) is equal to one. Find the value of \( \lambda\)

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