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Just as the points (cos t, sin t) form a circle with a unit radius, the points (cosh t, sinh t) form the right half of the unit hyperbola. Also, similarly to how the derivatives of sin(t) and cos(t) are cos(t) and –sin(t) respectively, the derivatives of sinh(t) and cosh(t) are cosh(t) and +sinh(t) respectively.
According to the legend, Gióng was a boy who rode on an iron horse and won against the enemy of the state. [4] The most well known version of the legend had him battle against the Chinese army, thus, he is considered the first anti-invasion hero of the Vietnamese. Some researchers believe he is the Vietnamese version of Vaiśravaṇa. [5]
Bánh chưng or banh chung is a traditional Vietnamese dish which is made from glutinous rice, mung beans, pork, and other ingredients. [ 1 ] According to legend, its origin traces back to Lang Liêu, a prince of the last king of the Sixth Hùng Dynasty .
The 2021 Southeast Asian Games (Vietnamese: Đại hội Thể thao Đông Nam Á 2021, lit. '2021 Southeast Asian Sport Assembly'), officially known as the 31st Southeast Asian Games, 31st SEA Games or SEA Games 31, and also recognized as Viet Nam 2021, was the 31st edition of the Southeast Asian Games, the biennial regional multi-sport event which was held in Hanoi, Vietnam and its ...
Plot of Ci(x) for 0 < x ≤ 8π. The different cosine integral definitions are .. Cin is an even, entire function.For that reason, some texts define Cin as the primary function, and derive Ci in terms of Cin .
Vietnam, [e] [f] officially the Socialist Republic of Vietnam, [g] [h] is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country.
The COVID-19 pandemic in Vietnam has resulted in 11,624,000 [1] confirmed cases of COVID-19 and 43,206 [1] deaths. The number of confirmed cases is the highest total in Southeast Asia, and the 13th highest in the world.