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contestada

Determine o período e o conjunto imagem, construindo o gráfico de um período completo para cada função dada.a) por f(x) = 1+ 4 sen x.b) por f(x) = 2sen (x-3)

Respuesta :

Answer:

The given functions are

[tex]f(x)=1+4sinx[/tex]

[tex]f(x)=2sin(x-3)[/tex]

The sine function has a standard period of [tex]2 \pi[/tex] by definition. However, this might change if we use a factor as coefficient of the x-varible, but in this case we don't have that.

Therefore, the period of both trigonometric functions is [tex]2 \pi[/tex].

Now, the images of each function is the y-variable set values that defines each function.

So, the function [tex]f(x)=1+4sinx[/tex] has an image defined by the set [tex][-3,5][/tex]. It's impotant to notice that the range of a standard function is [-1,1], however, in this case, the function was shifted 1 unit up and it was streched by a factor of 4, that's why the standard image changes to [tex][-3,5][/tex].

About the second function [tex]f(x)=2sin(x-3)[/tex], the image set is [tex][-2,2][/tex], because the function was streched by a factor of 2.

Additionally, the image attached shows the graph of the given functions.

Ver imagen jajumonac