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NDA 2010
Exam
NDA
Year
2010
Subject
Mathematics
Chapter
Vector Algebra

NDA 2010 · Mathematics · Vector Algebra

What is the value of b such that the scalar product of the vector i...

What is the value of bb such that the scalar product of the vector i^+j^+k^\hat{i}+\hat{j}+\hat{k} with the unit vector parallel to the sum of the vectors 2i^+4j^−5k^2 \hat{i}+4 \hat{j}-5 \hat{k} and bi^+2j^+3k^b \hat{i}+2 \hat{j}+3 \hat{k} is unity?

Options

  1. A-2
  2. B-1
  3. C0
  4. D1

Correct answer

D. 1

Step-by-step solution

The correct answer is option (D).
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