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a) Calculate to 2 decimal places the areas of the following triangles. (i) (ii)

b) Without using mathematical tables or calculator, evaluate
(i) tan30°∙sin30°+tan60°∙cos30°cos30°∙tan60°∙-sin30°∙cos60°
(ii)tan60°∙sin60°-sin45°∙cos45°cos30°∙tan60°∙+sin30°∙tan45°