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If A = B + C have scalar magnitudes of 5,4,3 units respectively, then the angle between A and C is

Options

  1. A⁻¹(3 / 5)
  2. B⁻¹(4 / 5)
  3. C/ 2
  4. D⁻¹(3 / 4)

Correct answer

A. ⁻¹(3 / 5)

Step-by-step solution

Here, triangle is = ⁻¹ ( | C | | A | ) = ⁻¹ ( 3 5 )

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