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Symbolab is an answer engine [1] that provides step-by-step solutions to mathematical problems in a range of subjects. [2] It was originally developed by Israeli start-up company EqsQuest Ltd., under whom it was released for public use in 2011. In 2020, the company was acquired by American educational technology website Course Hero. [3] [4]
12 × 5 is the second American studio album by the English rock band the Rolling Stones, released in 1964 following the success of their American debut The Rolling Stones (England's Newest Hit Makers). It is an expanded version of the EP Five by Five, which had followed their debut album in the UK.
A set of rules can be used to infer any valid conclusion if it is complete, while never inferring an invalid conclusion, if it is sound. A sound and complete set of rules need not include every rule in the following list, as many of the rules are redundant, and can be proven with the other rules.
Seed investors SV Angel and Maveron also participated. [5] In February 2020, the company raised a further $10 million in Series B Funding, valuing the company at over $1 billion. The Series B round was led by NewView Capital, whose founder and managing partner, Ravi Viswanathan, joined Course Hero's board of directors.
Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [4]
Several variations on the game of quiz bowl exist that affect question structure and content, rules of play, and round format. [3] One standardized format is the pyramidal tossup/bonus format, which is used in NAQT and ACF (or mACF, referring to question sets produced in a similar style to those of ACF) competitions.
Only 0 ≤ k < n are shown, since due to rule (2) below any other k can be reduced modulo n. Quadratic residues are highlighted in yellow — note that no entry with a Jacobi symbol of −1 is a quadratic residue, and if k is a quadratic residue modulo a coprime n , then ( k / n ) = 1 , but not all entries with a Jacobi symbol of 1 (see ...
[6] [7] [a] The parentheses can be omitted if the input is a single numerical variable or constant, [2] as in the case of sin x = sin(x) and sin π = sin(π). [a] Traditionally this convention extends to monomials; thus, sin 3x = sin(3x) and even sin 1 / 2 xy = sin(xy/2), but sin x + y = sin(x) + y, because x + y is not a monomial ...