It is given that cos α = t where t is a constant and 0 degree ≤ α ≤ 90 degree. Express in terms of t (a) sin (180o + α), (b) sec 2α.
Whats the difference between electrochemical series and reactivity series? Is there a difference between tendency of discharge and reactivity?
Apakah tindakan J.W.W Birch yang menyebabkan orang Melayu bangkit menentang British di Pasir Salak, Perak?
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