What is maclaurin arctan(3x) ?

The answer to maclaurin arctan(3x) is 3x-9x^3+243/5 x^5-2187/7 x^7+2187x^9+\ldots

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maclaurin arctan(3x)

maclaurin

arctan (3 x)

3 x - 9 x^{3} + \frac{243}{5} x^{5} - \frac{2187}{7} x^{7} + 2187 x^{9} + \dots

Solution steps

Apply the Maclaurin Formula

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

Evaluate Derivatives

= 0 + \frac{3}{1 !} x + \frac{0}{2 !} x^{2} + \frac{- 54}{3 !} x^{3} + \frac{0}{4 !} x^{4} + \frac{5832}{5 !} x^{5} + \frac{0}{6 !} x^{6} + \frac{- 1574640}{7 !} x^{7} + \frac{0}{8 !} x^{8} + \frac{793618560}{9 !} x^{9} + \dots

Refine

= 3 x - 9 x^{3} + \frac{243}{5} x^{5} - \frac{2187}{7} x^{7} + 2187 x^{9} + \dots

\frac{d}{d t} (sin^{2} (t))

\frac{d}{d x} (6 e^{x} + 2 y)

(2 x - 4) \frac{d y}{d x} - y^{2} = 0

\frac{d}{d x} (cos (x) cos (x))

\frac{d}{d x} (\frac{x + 8}{3 x ^{2} e ^{x}})

What is maclaurin arctan(3x) ?
The answer to maclaurin arctan(3x) is 3x-9x^3+243/5 x^5-2187/7 x^7+2187x^9+\ldots