| 31. | The altitudes are also related to the sides of the triangle through the trigonometric functions.
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| 32. | These properties apply to all the inverse trigonometric functions.
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| 33. | Trigonometric functions of inverse trigonometric functions are tabulated below.
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| 34. | It is these ratios that the trigonometric functions express.
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| 35. | Inverse trigonometric functions are found by reversing the process.
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| 36. | There is a theoretical reason for this, and it involves Fourier transforms and hence trigonometric functions.
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| 37. | The President Scientific added logarithmic and trigonometric functions.
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| 38. | The voltage equation then reduces to trigonometric functions
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| 39. | The trigonometric functions are also important in physics.
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| 40. | One form of the equations uses trigonometric functions.
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