Упростите: \(sin(45^\circ-\alpha).\) \(\frac{\sqrt{2}}{2}(cos\alpha-sin\alpha)\) \(\frac{\sqrt{2}}{2}(sin\alpha-cos\alpha)\) \(\frac{\sqrt{2}}{2}(cos\alpha+sin\alpha)\) \(\frac{\sqrt{2}}{2}(sin\alpha+cos\alpha)\)
Задание

Упростите: \(sin(45^\circ-\alpha).\)

  • \(\frac{\sqrt{2}}{2}(cos\alpha-sin\alpha)\)
  • \(\frac{\sqrt{2}}{2}(sin\alpha-cos\alpha)\)
  • \(\frac{\sqrt{2}}{2}(cos\alpha+sin\alpha)\)
  • \(\frac{\sqrt{2}}{2}(sin\alpha+cos\alpha)\)