can u help me with Maclaurin series expansion

can you please help me solve this problem

Create MATLAB function that implement this formula Cos(x) = 1-(x^2/2!)+(x^4/4!)-(x^6/6!)+.......

Et = Abs ((True value - approximation value)/(true value))*100

Cos (0.9) , eighth term

[madhan ravi]

What have we tried so far??

[Fahad alshammari]

please help

Answer 1

[madhan ravi]

See https://www.mathworks.com/matlabcentral/answers/363582-how-to-write-the-summation-of-the-maclaurin-series-of-cos-x#answer_288088 same question

[Fahad alshammari]

I'm kinda lost

s = s + .... what should I type there