Question

Considering two vectors A = i +29 and B = 2î + . Choose the correct statement(s).

A. Angle between (A + B) and (A - B) is 90° (A - B) is 90
B. (A + B). A = 9
C. (A - ) a B x = (1 + B) → -> A A G
D. I B-2 ) =
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Answer 1

Answer:

Explanation:

Therefore, cosθ=0

θ=90  ∘  

Hence angle between the vectors is 90  

∘