Ask Question
12 December, 09:39

What is the dot product of a = - 2i - 5j and b=i - 4j

+2
Answers (1)
  1. 12 December, 10:47
    0
    I. i = j. j = 1

    i. j = j. i = 0

    (-2i - 5j) (i - 4j)

    = (-2i). i + (-2i). (-4j) + (-5j). i + (-5j). (-4j)

    = - 2 + 0 + 0 + 20 = 18
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What is the dot product of a = - 2i - 5j and b=i - 4j ...” in 📙 Physics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers