| 31. | The methods used made no explicit use of algebra, nor trigonometry.
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| 32. | It consists of five books on plane and spherical trigonometry.
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| 33. | Is this Calculus, Statistics, Algebra, Trigonometry,?
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| 34. | Until 2009, mathematics up to trigonometry was included in the curriculum.
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| 35. | :Also, many equations in trigonometry have more than one solution.
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| 36. | The Pythagorean Theorem is one of the most basic tools of trigonometry.
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| 37. | There is an enormous number of uses of trigonometry and trigonometric functions.
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| 38. | Use trigonometry and the Pythogorean theorem to obtain the result.
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| 39. | Kresa was the first to introduce algebraic number to trigonometry.
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| 40. | Curtiss authored textbooks on trigonometry and analytic geometry with Elton James Moulton.
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