Civil Engineering > GATE 2022 SET-1 > Calculus
The Fourier cosine series of a function is given by:
f(x) = Σ∞n=0 fn cos nx
For f(x) = cos4x, the numerical value of (f4 + f5) is _______. (round off to three decimal places)
f(x) = Σ∞n=0 fn cos nx
For f(x) = cos4x, the numerical value of (f4 + f5) is _______. (round off to three decimal places)
Correct : 0.125
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