资讯

BBC2 年
Trigonometry - Edexcel Trigonometric ratios
It is opposite the right angle. The opposite side (\(o ... the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral triangle with side lengths of 2 cm ...
BBC1 年
Trigonometry - AQA Trigonometric ratios
It is opposite the right angle. The opposite side (\(o ... the angles 30°, 45° and 60° can be calculated using two special triangles. An equilateral triangle with side lengths of 2 cm ...