Give the value of the term a₁ in Cartesian representation. αι = Give the formula for the even indices (n even). Note The formula for the even indices should contain only real quantities. F(n) = Compute the coefficients for f(t), i.e., F(n) for n = −4, −2, —1, 0, 1, 2, 4. Write the formula for approximation using these terms using a constant and three cosines with phase. f(t) ≈

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