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Solved Examples
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e   Choose the period of the function y = sin 3x + 2 cos 2x from the following.   e View Solution
e   What is the domain of the function f(x) = |cos x|?
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e   Find the range of the function f(x) = |cos x2|.   e View Solution
e   Find the domain of the function f(x) = 4x - cos x.
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e   Choose the equations of the two lines, between which the graph of the function y = 2x + sin x oscillates.
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e   Choose the two lines, between which the graph of the function y = 2 - x + cos x oscillates.   e View Solution
e   The graph of the function f(x) = 3 + x + cos 3x oscillates between two parallel lines. Choose the equations of these parallel lines.
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e   What is the period of the function y = sin 3x?
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e   Find the period of the function y = 2 sin(3x + 1) - cos(5x - 1).
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e   Find the period for the function y = 2 cos 3x + sin 2x.   e View Solution
e   Sketch the graph of the function y = cos 5x + cos 2x showing one period. Then find the period.
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e   Determine whether the function f(x) = x cos 4x exhibits damped oscillations.   e View Solution
e   Determine whether the function f(x) = 2 sin 2x - cos x is sinusoid or not.   e View Solution
e   What is the period of the function f (x) = | cos x |?
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