Question

⃗ = + + and ⃗ = −2 + 4 −2.Find the angle between ⃗ and ⃗

Answer 1

$\huge\underline\mathfrak\red{Answer○}$

An easier way to find the angle between two vectors is the dot product formula(A.B=|A|x|B|xcos(X)) let vector A be 2i and vector be 3i+4j. As per your question, X is the angle between vectors so: A.B = |A|x|B|x cos(X) = 2i.

Therefore, answer The angle between two vectors a = i+2j-k and b=2i+j+k is 30.

Answer 2

Answer:

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