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Escuela de Ciencias de la Educación ECEDU
Tarea 3, ejercicio c .
Realizar las siguientes identidades trigonométricas.
sec 𝑥
𝑡𝑔 𝑥 + 𝑐𝑡𝑔 𝑥
= 𝑠𝑒𝑛 𝑥
Escuela de Ciencias de la Educación ECEDU
Hay que tener en cuenta que las identidades trigonométricas para solucionarlas debemos de tener en cuenta las identidades fundamentales.
𝒔𝒆𝒏𝟐
𝐱 + 𝐜𝐨𝐬𝟐
𝐱 = 𝟏
La idea es partir de un lado y verificar que se cumple la igualdad haciendo los pasos necesarios para logralo.
1
cos 𝑥
𝑠𝑒𝑛 𝑥
cos 𝑥
+
cos 𝑥
𝑠𝑒𝑛 𝑥
=
1
cos 𝑥
𝑠𝑒𝑛2𝑥 + cos2 𝑥
𝑐𝑜𝑠𝑥 𝑠𝑒𝑛 𝑥
=
1
cos 𝑥
1
cos 𝑥 𝑠𝑒𝑛 𝑥
𝑠𝑒𝑛 𝑥 𝑐𝑜𝑠𝑥
𝑐𝑜𝑠𝑥
= 𝑠𝑒𝑛 𝑥

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Pensamiento Variacional y Trigo Daibis montes

  • 1. Escuela de Ciencias de la Educación ECEDU Tarea 3, ejercicio c . Realizar las siguientes identidades trigonométricas. sec 𝑥 𝑡𝑔 𝑥 + 𝑐𝑡𝑔 𝑥 = 𝑠𝑒𝑛 𝑥
  • 2. Escuela de Ciencias de la Educación ECEDU Hay que tener en cuenta que las identidades trigonométricas para solucionarlas debemos de tener en cuenta las identidades fundamentales. 𝒔𝒆𝒏𝟐 𝐱 + 𝐜𝐨𝐬𝟐 𝐱 = 𝟏 La idea es partir de un lado y verificar que se cumple la igualdad haciendo los pasos necesarios para logralo. 1 cos 𝑥 𝑠𝑒𝑛 𝑥 cos 𝑥 + cos 𝑥 𝑠𝑒𝑛 𝑥 = 1 cos 𝑥 𝑠𝑒𝑛2𝑥 + cos2 𝑥 𝑐𝑜𝑠𝑥 𝑠𝑒𝑛 𝑥 = 1 cos 𝑥 1 cos 𝑥 𝑠𝑒𝑛 𝑥 𝑠𝑒𝑛 𝑥 𝑐𝑜𝑠𝑥 𝑐𝑜𝑠𝑥 = 𝑠𝑒𝑛 𝑥