Let f be the function given by f(x) = 4 cos x. As shown below, the graph of f crosses the y-axis at point P (0, 4) and the x-axis at point Q (,0). Find the x-coordinate of the point on the graph of f, between points P and Q, at which the line tangent to the graph of fis parallel to line PQ. -TT/4 -2- 0 -2- P K TT/4 TT/2 3TT/4

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A: To find (g - f)(-2).  (g - f)(x) = g(x) - f(x) value of both functions at x = - 2    g(-2) = 2 f(-2)…

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A:

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A: How to solve: make a graph of sin(x) and then transform it one by one:

Q:

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A: NOTE: Refresh your page if you can't see any equations. . take derivative

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A: