Mathematics, 28.04.2021 18:50 alyssaxsanchez

Se the first five terms of the trigonometric series to approximate the value of cos 4pi/7 to four decimal places. Then compare the approximation to the actual value. A. –0.9609, –0.9659 c. –0.9649, –0.9659 b. –0.2224, –0.2225 d. –0.9568, –0.9659

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Se the first five terms of the trigonometric series to approximate the value of cos 4pi/7 to four de...