Question

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Answer 1

Cos (225°) tan (- 120°) sin (2400°)/Cos (540°)

c = Cos (225°) × ✓3 × (- ✓3/2)/Cos (90° + 450°)

c = Cos (225°) × ✓3 × (- ✓3/2)/- sin (450°)

c = Cos (225°) × ✓3 × (- ✓3/2)/- 2 sin (225°) Cos (225°)

c = ✓3 × (- ✓3/2)/- 2 × ( - ✓2/2)

c = - 3/2/✓2

c = - 3/2✓2

c = - 3✓2/4

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| Respuesta C |

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