science
Grade-11
Easy

Question

Cosϴ=

  1. A.B
  2. AB
  3. A.B(AB)
  4. A.B/AB

hintHint:

  •  a.b = |a| |b| cosθ. ( Scalar Product )

The correct answer is: A.B/AB


    •  a.b = |a| |b| cosθ. ( Scalar Product )
    • cosθ=fraction numerator a. b over denominator vertical line a vertical line space vertical line b vertical line end fraction
    • So option 4 is the answer.

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