搜尋結果
Viète. de Moivre. Euler. Fourier. v. t. e. In trigonometry, trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined. Geometrically, these are identities involving certain functions of one or more angles.
The United Arab Emirates [b] ( UAE ), or simply the Emirates, [c] is a country in West Asia, in the Middle East. It is located at the eastern end of the Arabian Peninsula and shares borders with Oman and Saudi Arabia, while also having maritime borders in the Persian Gulf with Qatar and Iran. Abu Dhabi is the country's capital, while Dubai, the ...
The United States of America (USA or U.S.A.), commonly known as the United States (US or U.S.) or America, is a country primarily located in North America. It is a federation of 50 states, a federal capital district (Washington, D.C.), and 326 Indian reservations. Outside the union of states, it asserts sovereignty over five major ...
Jesus[d] (c. 6 to 4 BC – AD 30 or 33), also referred to as Jesus Christ,[e] Jesus of Nazareth, and many other names and titles, was a first-century Jewish preacher and religious leader.[10] He is the central figure of Christianity, the world's largest religion. Most Christians believe Jesus to be the incarnation of God the Son and the ...
Australia, officially the Commonwealth of Australia,[15] is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands.[b] Australia is the largest country by area in Oceania and the world's sixth-largest country. Australia is the oldest,[16] flattest,[17] and driest inhabited ...
X, commonly referred to by its former name Twitter, is a social media website based in the United States. With over 500 million users, it is one of the world's largest social networks and the fifth-most visited website in the world.[4][5] Users can share text messages, images, and videos as "tweets".[6] X also includes direct messaging, video ...
Islam (/ˈɪzlɑːm, ˈɪzlæm/ IZ-la(h)m;[8] Arabic: ٱلْإِسْلَام, romanized: al-Islām, IPA: [alʔɪsˈlaːm], lit. 'submission [to the will of God]') is an Abrahamic monotheistic religion centered on the Quran and the teachings of Muhammad, the religion's founder. Adherents of Islam are called Muslims, who are estimated to number ...
