express sin 67 degree +Cos 75 degree in terms of trigonometric ratios of angles between 0 degree and 45 degree
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Express sin 67° + cos 75° in terms of trigonometric ratios of angles between 0° and 45°. = sin (90° - 23°) + cos (90° - 15°) = cos 23° + sin 15°. In ΔABC, right angled at B. AB = 24 cm, BC = 7 cm.
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