taylor x^2cos(x)

Lösung

taylor

x^{2} cos (x)

x^{2} - \frac{1}{2} x^{4} + \frac{1}{24} x^{6} - \frac{1}{720} x^{8} + \frac{1}{40320} x^{10} + \dots

Schritte zur Lösung

Apply the Taylor Formula

= 0 + \frac{\frac{d}{d x} ( x ^{2} cos ( x ) ) ( 0 )}{1 !} x + \frac{\frac{d ^{2}}{d x ^{2}} ( x ^{2} cos ( x ) ) ( 0 )}{2 !} x^{2} + \frac{\frac{d ^{3}}{d x ^{3}} ( x ^{2} cos ( x ) ) ( 0 )}{3 !} x^{3} + \dots

Evaluate Derivatives

= 0 + \frac{0}{1 !} x + \frac{2}{2 !} x^{2} + \frac{0}{3 !} x^{3} + \frac{- 12}{4 !} x^{4} + \frac{0}{5 !} x^{5} + \frac{30}{6 !} x^{6} + \frac{0}{7 !} x^{7} + \frac{- 56}{8 !} x^{8} + \frac{0}{9 !} x^{9} + \frac{90}{10 !} x^{10} + \dots

Fasse zusammen

= x^{2} - \frac{1}{2} x^{4} + \frac{1}{24} x^{6} - \frac{1}{720} x^{8} + \frac{1}{40320} x^{10} + \dots

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