UPSKILL MATH PLUS

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Express:
 
(i) \(sin \ 74^{\circ}\) in terms of cosine \(=\)
 
(ii) \(tan \ 12^{\circ}\) in terms of cotangent \(=\)
 
(iii) \(cosec \ 39^{\circ}\) in terms of secant \(=\)