enow.com Web Search

  1. Ads

    related to: how to use substitution in geometry proofs and properties

Search results

  1. Results from the WOW.Com Content Network
  2. Brahmagupta theorem - Wikipedia

    en.wikipedia.org/wiki/Brahmagupta_theorem

    Proof of the theorem. We need to prove that AF = FD.We will prove that both AF and FD are in fact equal to FM.. To prove that AF = FM, first note that the angles FAM and CBM are equal, because they are inscribed angles that intercept the same arc of the circle (CD).

  3. Tangent half-angle substitution - Wikipedia

    en.wikipedia.org/.../Tangent_half-angle_substitution

    The substitution is described in most integral calculus textbooks since the late 19th century, usually without any special name. [5] It is known in Russia as the universal trigonometric substitution, [6] and also known by variant names such as half-tangent substitution or half-angle substitution.

  4. Mathematical proof - Wikipedia

    en.wikipedia.org/wiki/Mathematical_proof

    Proof by construction, or proof by example, is the construction of a concrete example with a property to show that something having that property exists. Joseph Liouville , for instance, proved the existence of transcendental numbers by constructing an explicit example .

  5. Metamath - Wikipedia

    en.wikipedia.org/wiki/Metamath

    A step-by-step proof. All Metamath proof steps use a single substitution rule, which is just the simple replacement of a variable with an expression and not the proper substitution described in works on predicate calculus. Proper substitution, in Metamath databases that support it, is a derived construct instead of one built into the Metamath ...

  6. Lambda calculus - Wikipedia

    en.wikipedia.org/wiki/Lambda_calculus

    Substitution, written M[x := N], is the process of replacing all free occurrences of the variable x in the expression M with expression N. Substitution on terms of the lambda calculus is defined by recursion on the structure of terms, as follows (note: x and y are only variables while M and N are any lambda expression): x[x := N] = N

  7. Substitution (logic) - Wikipedia

    en.wikipedia.org/wiki/Substitution_(logic)

    This is a property which is most often used in algebra, especially in solving systems of equations, but is apllied in nearly every area of math that uses equality. This, taken together with the reflexive property of equality, forms the axioms of equality in first-order logic.

  8. Change of variables - Wikipedia

    en.wikipedia.org/wiki/Change_of_variables

    Difficult integrals may also be solved by simplifying the integral using a change of variables given by the corresponding Jacobian matrix and determinant. [1] Using the Jacobian determinant and the corresponding change of variable that it gives is the basis of coordinate systems such as polar, cylindrical, and spherical coordinate systems.

  9. Thales's theorem - Wikipedia

    en.wikipedia.org/wiki/Thales's_theorem

    Thales’ theorem: if AC is a diameter and B is a point on the diameter's circle, the angle ∠ ABC is a right angle.. In geometry, Thales's theorem states that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ∠ ABC is a right angle.

  1. Ads

    related to: how to use substitution in geometry proofs and properties