Physics, asked by danishmalik7265, 1 month ago

what is angle between (j+k) and k

Answers

Answered by anvis922

0

Answer:

Let a=i^+j^ and b=j^+k^

a⋅b=∣a∣∣b∣cosθ

⇒1=22cosθ

⇒cosθ=21

∴θ=3π

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