Geometry
# Graphs of Trigonometric Functions

Over the entire real line, the number of values of x where the function

\[ f(x) = \cos x + \cos ( \sqrt{2}x ) \] attains its maximum value is:

The four graphs above are drawn on the same axes from \(x = 0 \) to \(x = \frac \pi2 \).

If a vertical line is drawn where the graphs of \(y=\cos (x) \) and \(y = \tan (x)\) intersect, this line intersects the graphs of \(y=\sin(x)\) and \(y=\csc(x)\) at points \(A\) and \(B\). What is the distance between \(A\) and \(B\)?

How many real numbers \(x\) satisfy \(\sin x = \frac{x}{100}?\)

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