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function m-file to calculate the approximated cosine function which can be evaluated by the following infinite

series - equation (2):

Here are requirements for the function m-file.

- Parameter lists (inputs): x value (in radian), and desired error percentage .

- Return value (outputs): approximated value, real error percentage, and number of iterations - Function name: 'Approx_Cos_yourEmailAccount'

- x = π/12 and %error = 1%. Save it on EX1_11.dat.

- x = π/12 and %error = 0.1%. Save it on EX1_12.dat.

- x = π/6 and %error = 1%. Save it on EX1_13.dat.

- x = π/6 and %error = 0.1%. Save it on EX1_14.dat.

- x = π/6 and %error = 0.01%. Save it on EX1_15.dat.

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