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There are several equivalent ways for defining trigonometric functions, and the proofs of the trigonometric identities between them depend on the chosen definition. The oldest and most elementary definitions are based on the geometry of right triangles and the ratio between their sides.
Precision and recall. In statistical analysis of binary classification and information retrieval systems, the F-score or F-measure is a measure of predictive performance. It is calculated from the precision and recall of the test, where the precision is the number of true positive results divided by the number of all samples predicted to be positive, including those not identified correctly ...
In the integral , we may use = , = , = . Then, = = () = = = + = +. The above step requires that > and > We can choose to be the principal root of , and impose the restriction / < < / by using the inverse sine function.
"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." In the world of baked goods, there are tasty recipes and then there are top-notch, tried-and-true ...
Dear diary, I’m totally going to jail today! A Minnesota delivery driver was busted for auto theft because she wrote in her diary that she, “Totally stole a car today!” according to police.
Texans wide receiver Nico Collins saw a fan in the stands and tossed him a football following a Nov. 24 touchdown against the Titans. The move earned him a fine by the NFL.
The tangent half-angle substitution relates an angle to the slope of a line. Introducing a new variable = , sines and cosines can be expressed as rational functions of , and can be expressed as the product of and a rational function of , as follows: = +, = +, = +.
By Makini Brice and Juliette Jabkhiro. PARIS (Reuters) -The Cour de Cassation, France's highest court, upheld on Wednesday former President Nicolas Sarkozy's conviction for corruption and ...