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Ex 8.3, 7 - Express sin 67 + cos 75 in terms of 0 and 45 - Ex 8.3

  1. Class 10
  2. Important Questions for Exam - Class 10
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Ex 8.3, 7 Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°. sin 67° + cos 75° = sin (90 – 23) + cos (90 – 15) = cos 23° + sin 15° Hence required value is cos 23° + sin 15°

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