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Mathematics 17 Online
quickstudent:

What is the equation of the following graph?

quickstudent:

1 attachment
Vocaloid:

well we can eliminate -tan(x) based on the direction of the graph (if there was a negative sign in front the graphs would be decreasing) we can see the point f(0.25pi) = 1 so you just need to test which equation (tanx, 2tanx, or 3tanx) gives 1 when you plug in 0.25pi, or just look on the unit circle

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