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Hipervinculo Matemática

"The cosine addition formula calculates the cosine of an angle that is either the sum or difference of two other angles. It arises from the law of cosines and the distance formula. By using the cosine ...

Hipervinculo Matemática

Complex Roots

"We can use a simple four-step guide to help us find complex roots, or the nth roots of complex numbers. These guidelines simplify for us the process of using DeMoivre's Theorem to find complex roots. ...

Hipervinculo Matemática

Complex Number Roots

"We can use DeMoivre's Theorem to calculate complex number roots. In many cases, these methods for calculating complex number roots can be useful, but for higher powers we should know the general four ...

Video Matemática

Other Forms of the Cosine Double-Angle Formula

"The cosine double angle formula is cos(2theta)=cos2(theta) - sin2(theta). Combining this formula with the Pythagorean Identity, cos2(theta) + sin2(theta)=1, two other forms appear: cos(2theta)=2cos2 ...

Hipervinculo Matemática

Asymptotes of Secant, Cosecant, and Cotangent

"To find the x-intercepts and asymptotes of secant, cosecant, and cotangent, rewrite them in terms of sine and cosine. Notice that since secant and cosecant have 1 in the numerator and a trig functio ...

Video Matemática

Angle of Elevation and Depression

"In real world situations we often discuss the angle of elevation and depression. The angle of elevation and depression is used often in word problems, especially those involving a persons line of sig ...

Hipervinculo Matemática

Angle Inclination of a Line

"The angle inclination of a line is the angle formed by the intersection of the line and the x-axis. Using a horizontal "run" of 1 and m for slope, the angle of inclination, theta=tan-1(m), or m=tan(t ...

Hipervinculo Matemática

45 45 90 Triangles

"A 45 45 90 triangle is a special type of isosceles right triangle where the two legs are congruent to one another and the non-right angles are both equal to 45 degrees. Many times, we can use the Pyt ...

Hipervinculo Matemática para as Ciências Sociais

Guías de estudio de matemáticas (inglés)

Material de apoyo para las clases de matemáticas de primaria a bachillerato. Aquí encontrarás breves explicaciones sobre cualquier punto de álgebra, cálculo, geomet ...

Hipervinculo Matemática

Guía de estudios de trigonometría: ecuaciones

Un interesante recurso para la enseñanza biligüe de matemáticas. Aquí encontrarás una completa guía de estudio para aprender trigonometría. Se trata de ...

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