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paiged55
14.07.2019 •
Mathematics
Question 4 which is the equation of the following graph? f(x) = 3sin x f(x) = 2sin x f(x) = 3cos x f(x) = 2cos x
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Ответ:
Hello!
The graph of f(x) = sin(x) is an odd function, while the graph of f(x) = cos(x) is an even graph. As shown on the graph above, this graph is even because it is symmetric with respect to the y-axis.
Also, the range of this function is -3 ≤ y ≤ 3, this tells us our amplitude. which is 3. Amplitude is the maximum displacement on the graph of a function.
Therefore, the equation of this graph is choice D, f(x) = 2cos x.
Ответ:
Then
f(7) = 7 - 10
f(7) = -3