Question

can anyone please help me with trigonometry?? I've been asking and asking through messages and no one replies

Answer 1

tis easier with an specific posting

Answer 2

Describe how the graphs of functions f and g are related : f(x) = 2 cos(pi x) and g(x) = 2cos (2pi x)

Answer 3

have you covered function transformations? like for say a quadratic function or a linear one?

Answer 4

and second question : Determine the period,domain,range,zeros, and asymptotes (if any). Then sketch graph of function y = -3tan (1/2 x)

Answer 5

yes well the basics is what I know for example y = Asin(B(x+/- c)) +/- D

Answer 6

so can you help me with either question please?

Answer 7

I've done about 15 other questions just need to finish those two

Answer 8

oh and amplitude and period of y = -sin (x - pi/4) + 2

Answer 9

that's it

Answer 10

well, for one f(x) and g(x) share the same amplitude

Answer 11

and for another, g(x) is the same as f(x), just SHRUNKEN a bit due to its phase/horizontal shift \(\bf f(x) = 2 cos({\color{blue}{ \pi }}x) \qquad g(x) = 2cos ({\color{blue}{ 2\pi}} x)\\ \quad \\
\textit{phase shift}\quad f(x)\implies \cfrac{2\pi}{{\color{blue}{ \pi }}}\qquad g(x)\implies \cfrac{2\pi}{{\color{blue}{ 2\pi}}}\)

Answer 12

wait so there is a phase shift?

Answer 13

I thought that was period when you do 2pi/ B

Answer 14

ohh right, it's the period... .I meant... .thus is SHRUNKEN

Answer 15

other than that... they're the same function

Answer 16

so g(x) is shrunken version of f(x)?

Answer 17

hi @ranga !

Answer 18

yes

Answer 19

for how the graphs are related I have " Neither experience phase shift or vertical translation". "Both have same amplitude of 2." and "Period of f(x) = 2 and period of g(x) = 1. Anything else I should add?

Answer 20

oh and g(x) is shrunken version of f(x). Wait horizontally or vertically?

Answer 21

the period is being changed from g(x) so it'll shrink from