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Ptolemy's theorem states that the sum of the products of the lengths of opposite sides is equal to the product of the lengths of the diagonals. When those side-lengths are expressed in terms of the sin and cos values shown in the figure above, this yields the angle sum trigonometric identity for sine: sin(α + β) = sin α cos β + cos α sin β.
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Jul 31, 2024 · Trigonometry is a branch of mathematics. The word itself comes from the Greek trigōnon (which means "triangle") and metron ("measure"). As the name suggests, trigonometry deals primarily with angles and triangles; in particular, it defines and uses the relationships and ratios between angles and sides in triangles.
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From left to right: Johnny Bravo, Suzy, and Mama Bravo. The series centers on Johnny Bravo (voiced by Jeff Bennett), [g] a sunglasses-wearing, muscular, conceited narcissist and dimwitted self-proclaimed womanizing person with a pompadour and an Elvis Presley-esque voice, apparently of Italian heritage, who lives in Aron City (a nod to Presley's middle name).
Sine, Cosine and Tangent. Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: For a given angle θ each ratio stays the same no matter how big or small the triangle is. To calculate them: Divide the length of one side by another side
