
identidades trigonometricas
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Mathematics
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11th Grade
•
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Jhonatan Aragon
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14 Slides • 8 Questions
1
identidades trigonometricas
By Jhonatan Aragon
2
identidades trigonometricas
Es una identidad que contiene funciones trigonometricas
Sen α, Cos β, Tan θ, Cot D, Sec E , Csc F
Tan α= Sen α / Cos α
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Ejemplo:
Tan α= Sen α / Cos α
α=30
Tan (30°)= 0,577
Sen (30°) / Cos (30°)= 0,577
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Multiple Choice
Si el valor de α= 40,
remplazando en la identidad trigonometrica tan α= Sen α/Cos α
¿Cuál es el resultado?
1,09
1,91
1,19
Ninguna de las anteriores
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Multiple Choice
Cual de las siguientes expresiones no es una identidad trigonometrica
Sen A2 + Cos A2 =1
Tan B*Cos B=Sen B
Cos F= Tan F*Sen F
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Sen α = 1/Csc α
Cos β = 1/Sec β
Tan θ = 1 /Cot θ
Cot D = 1/ Tan D
Sec E = 1/Cos E
Csc F =1/Sen F
Identidades Reciprocas
Tan θ = Sen θ / Cos θ
Cot θ = Cos θ/ Sen θ
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Sen α = CO/H
Cos β = CA/H
Tan θ =CO/CA
Cot D = CA/CO
Sec E =H/CA
Csc F =H/CO
Sen α = 1/Csc α
1/CSC α= 1/ H/CO
ley extremos y medios
1/csc α= co/h
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Multiple Choice
Es correcto afirmar la siguiente igualdad tan α= sen α/cos α
Falso
verdadero
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Ejercicios:
Cos A= ??
Tan a= ??
CSC a=??
Demostrar:
Cot b=cos B/sen b
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Multiple Choice
Cos A= ??
sen a / h
1/Sec A
sen A/Cos A
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Multiple Choice
Tan a= ??
Cos A/Sen A
1/Sec A
1/ Csc A
Sen A/cos A
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identidades pitagoricas
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h2 = a2 + b2
12 = sen2 θ+ Cos2 θ
1= sen2 θ+ Cos2 θ
Identidades pitagoricas
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1= sen2 θ+ Cos2 θ
1 - Cos2 θ=sen2 θ
1 - sen2 θ= Cos2 θ
=
Identidades pitagoricas
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1= sen2 θ+ Cos2 θ
Identidades pitagoricas
1/ sen2 θ= sen2 θ/ sen2 θ+ Cos2 θ/sen2 θ
1/ Cos2 θ= sen2 θ/ Cos2 θ+ Cos2 θ/Cos2 θ
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1= sen2 θ+ Cos2 θ
1 - Cos2 θ=sen2 θ
1 - sen2 θ= Cos2 θ
Csc2 θ= 1+Cot2 θ
Csc2 θ-1= Cot2 θ Sec2 θ= Tan2 θ+1
Sec2 θ-1= Tan2 θ
=
Cot α * Csc α
Cos α / Sen α * 1/ Sen α
Cos α / Sen 2 α
Simplificación de identidades trigonometricas
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Multiple Choice
Tan α * Csc α= ?
1/sen α
1/ cos α
Sen α/ cos α
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tan α / cot α
Simplificación de identidades trigonometricas
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Multiple Choice
Cos α * Tan α
Sen α
Cos α
tan α
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Multiple Choice
tan α/ sen α
1/ sen α
1/ cos α
1/ tan α
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identidades trigonometricas
By Jhonatan Aragon
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