Trigonometry helps to calculate values of the sides of right triangles once another angle (other than the right angle) is known.
Among the scientific fields that make use of trigonometry are these:
acoustics, architecture, astronomy (and hence navigation, on the oceans, in aircraft, and in space; in this connection, see great circle distance), biology, cartography, chemistry, civil engineering, computer graphics, geophysics, crystallography, economics (in particular in analysis of financial markets), electrical engineering, electronics, land surveying and geodesy, many physical sciences, mechanical engineering, machining, medical imaging (CAT scans and ultrasound), meteorology, music theory, number theory (and hence cryptography), oceanography, optics, pharmacology, phonetics, probability theory, psychology, seismology, statistics, and visual perception, education. From here.
The names of the three primary trigonometry functions are:
- sine: The value for the sine of angle A is defined as the value that you get when you divide the opposite side by the hypotenuse.
- cosine: The value for…
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