Question

if vector a = 7 i cap +3 j cap and vector b = 2 i cap + 5 i cap find the angle between vectors a and b

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Answer 1

Answer:

Explanation:

f a vector and b vector are two vectors such that |a| = 10,|b| = 15 and a . b = 75√2, find the angle between a and b. θ = cos -1 [ 75√2/ (10) (15)] θ = cos -1 ( √2 /2) θ = cos -1 (1/ √2) (i) 2i vector + 3j vector − 6k vector and 6i vector − 3j vector + 2k vector θ = cos-1 [a vector . b vector/ |a| |b|]

Answer 2

Explanation:

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