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Question - Values of the Trigonometric Ratios of 30, 45 and 60

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ConceptValues of the Trigonometric Ratios of 30, 45 and 60  

Question

Find the value of x in each of the following :

(i) tan 3x = sin 45º cos 45º + sin 30º

(ii) cos x = cos 60º cos 30º + sin 60º sin 30º

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