Trignometric ratios of complementry angles
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Trignometric ratios of complementry angles
Last updated at April 16, 2024 by Teachoo
Question 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