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In calculus, the quotient rule is a method of finding the derivative of a function that is the ratio of two differentiable functions. [ 1][ 2][ 3] Let , where both f and g are differentiable and The quotient rule states that the derivative of h(x) is. It is provable in many ways by using other derivative rules .
Answer: In words: the holomorphic function can be obtained by putting and in . Example 1: with and we obtain . Example 2: with and we obtain . Proof : From the first pair of definitions and . This is an identity even when and are not real, i.e. the two variables and may be considered independent. Putting we get .
In multivariable calculus, the implicit function theorem[ a] is a tool that allows relations to be converted to functions of several real variables. It does so by representing the relation as the graph of a function. There may not be a single function whose graph can represent the entire relation, but there may be such a function on a ...
The exterior derivative is defined to be the unique ℝ -linear mapping from k -forms to (k + 1) -forms that has the following properties: The operator applied to the -form is the differential of. If and are two -forms, then for any field elements. If is a -form and is an -form, then ( graded product rule)
The list of unsuccessful proposed proofs started with Euler's, published in 1740, [3] although already in 1721 Bernoulli had implicitly assumed the result with no formal justification. [4] Clairaut also published a proposed proof in 1740, with no other attempts until the end of the 18th century. Starting then, for a period of 70 years, a number ...
In mathematics, Liouville's theorem, originally formulated by French mathematician Joseph Liouville in 1833 to 1841, [1] [2] [3] places an important restriction on antiderivatives that can be expressed as elementary functions . The antiderivatives of certain elementary functions cannot themselves be expressed as elementary functions.
Derivative test. In calculus, a derivative test uses the derivatives of a function to locate the critical points of a function and determine whether each point is a local maximum, a local minimum, or a saddle point. Derivative tests can also give information about the concavity of a function. The usefulness of derivatives to find extrema is ...
In calculus, the reciprocal rule gives the derivative of the reciprocal of a function f in terms of the derivative of f. The reciprocal rule can be used to show that the power rule holds for negative exponents if it has already been established for positive exponents. Also, one can readily deduce the quotient rule from the reciprocal rule and ...