Need help on designing plot
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Can anyone help me with the below? Appreciate if anyone can help. Thank you!
Design an x-y plot for the following where the values of x are from 0 to 20π with a spacing of π/100.
a. y = x.sin(x)
b. z = x.cos(x)
c. Convert the above 2D into a 3D plot using z as the third axis