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Answered by
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Answer:
Step-by-step explanation:
We can take dot product
so, A.B = |A||B|cosθ ................(1)
A.B = -1 + 2 + 2= 3
|A| = =
Again |B| = =
now, substituting all values in the first equation
3 = x x cosθ
= cosθ
= cosθ
=> θ = ( )
=> θ = 60⁰
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1
Answer:
not clear..........................
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