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This is strictly correct given that a nonnegative real number a has a unique nonnegative square root and this is called the principal square root which is denoted by √ a. The symbol √ is called the radical sign or radix. For example, the principal square root of 9 is 3, which is denoted by √ 9 = 3, because 3 2 = 3 • 3 = 9 and 3 is
The principal cube root is the cube root with the largest real part. In the case of negative real numbers, the largest real part is shared by the two nonreal cube roots, and the principal cube root is the one with positive imaginary part. So, for negative real numbers, the real cube root is not the principal cube root. For positive real numbers ...
For example, on a simple calculator, typing 1 + 2 × 3 = yields 9, while a more sophisticated calculator will use a more standard priority, so typing 1 + 2 × 3 = yields 7. Calculators may associate exponents to the left or to the right.
This is an accepted version of this page This is the latest accepted revision, reviewed on 24 February 2025. U.S. state This article is about the U.S. state. For other uses, see Pennsylvania (disambiguation). "Penn." redirects here. For other uses, see Penn. State in the United States Pennsylvania Pennsilfaani (Pennsylvania Dutch) State Commonwealth of Pennsylvania Flag Seal Nickname: The ...
Rensselaer Polytechnic Institute (/ r ɛ n s ə ˈ l ɪər /; RPI) is a private research university in Troy, New York, United States.It is the oldest technological university in the English-speaking world and the Western Hemisphere.
The drink was said to come in "four great flavors": Glutamate Grape (glutamic acid), Sugar-Free Radical (free radicals), Beta Carotty (Beta-Carotene), and Sero-Tonic Water . [8] This hoax was probably intended as a parody of Google's then invite-only email service called Gmail .