| 单词 | right-angled trigonometry |
| 释义 | > as lemmasright-angled trigonometry right-angled trigonometry n. Mathematics now rare trigonometry that deals with right angles and right-angled figures. ΘΚΠ the world > relative properties > number > geometry > [noun] > branches of > trigonometry trigonometry1614 right-angled trigonometry?a1729 ?a1729 J. Ward Posthumous Wks. (1730) i. iv. 88 In the Solution of the preceding six Cases of right-angled Trigonometry, it is to be observ'd, that the Proportions might have been varied. 1828 Moore's Pract. Navigator (ed. 20) 38 Solution of the Six Cases in Right-angled Trigonometry. 2003 Math. Gaz. 87 256 Pythagoras' theorem; right-angled trigonometry; linear factorisation [etc.]. < as lemmas |
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