martes, 22 de agosto de 2017

IDENTIDADES TRIGONOMETRICAS



Identidades de ángulo doble
Las identidades de ángulo doble (estas realmente son solo casos especiales de las fórmulas de Bhaskara Acharya, donde )
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image026.gif
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image027.gif
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image028.gif
Ejemplo:
Reescriba en una forma más simple usando una identidad trigonométrica:
2sin(5 )cos(5 )
Usando la fórmula de ángulo doble para el seno, donde
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image038.gif
Aplicando la fórmula, obtenemos
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image039.gif


Identidades de reducción de potencias
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image029.gif
Identidades de ángulo medio
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/topics/double-angle-and-half-angle-identities/image030.gif
Ejemplo:
Determine el valor correcto de cos15° .
Descripción: https://www.varsitytutors.com/assets/vt-hotmath-legacy/hotmath_help/spanish/topics/double-angle-and-half-angle-identities/image031-spanish.gif

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