Eric Nicholas K's answer to ZY's Secondary 4 E Maths Singapore question.
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The length of a line is no more than a slightly more complicated version of a basic Pythagoras theorem formula, since coordinates are being used.
Parts (ii) and (iii) require your knowledge of basic trigonometric ratios (sin, cos, tan) and the supplementary angle rule.
Parts (ii) and (iii) require your knowledge of basic trigonometric ratios (sin, cos, tan) and the supplementary angle rule.
Date Posted:
4 years ago