x^2-5x-16>20

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

simplify solve for expand factor rationalize

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Steps Examples

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taylor xcos(x)

Solution

x−12 x³+124 x⁵−1720 x⁷+140320 x⁹+…

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Solution steps

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Taylor Series

Taylor series of function f(x) at a is defined as:
f(x)=f(a)+f^′(a)1! (x−a)+f^′′(a)2! (x−a)²+f^′′′(a)3! (x−a)³+…

Apply the Taylor Formula

=0+ddx (xcos(x))(0)1! x+d²dx² (xcos(x))(0)2! x²+d³dx³ (xcos(x))(0)3! x³+…

Evaluate Derivatives

=0+11! x+02! x²+−33! x³+04! x⁴+55! x⁵+06! x⁶+−77! x⁷+08! x⁸+99! x⁹+…

Refine

=x−12 x³+124 x⁵−1720 x⁷+140320 x⁹+…

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