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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

Evaluate the following expression:

(i) `tan 60º cosec^2 45º + sec^2 60º tan 45º`

(ii) `4cot^2 45º – sec^2 60º + sin^2 60º + cos^2 90º.`

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