Draw the graph of y = 3 cos(2x–1)

Maths Trigonometrical Ratios, Functions and Identities Mix Subjective Type

Published on: August 12, 2026

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y = 3 cos (2x–1) …(i)

Transferring the origin to 0’ , the equation (i) becomes Y = 3 cos (2X) ....(ii)

Now for plotting the graph of (ii), we prepare the following table.

Plotting these points and joining them by free hand curve, the graph is as shown in fig.

While drawing the graph, we have to show both the coordinate systems.

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