Unidx2
Unidx2 Unidx2
  • 20-08-2021
  • Mathematics
contestada

express
[tex](4 - x) {}^{ \frac{1}{2} } [/tex]
in ascending power of x up to term x²

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Respuesta :

caylus
caylus caylus
  • 20-08-2021

Answer:

Step-by-step explanation:

Remember:

[tex]\boxed{(1+y)^{\frac{1}{2} }= 1+\dfrac{y}{2} -\dfrac{y^2}{2*4} +\dfrac{1*3*y^3}{2*4*6} +K\ with -1 < y \leq 1 }\\\\\\Let\ say\ 4-x=1+y\ or\ y=3-x\\\\\\(4-x)^{\frac{1}{2} }=1+\dfrac{3-x}{2} -\dfrac{(3-x)^2}{2*4} +K\ with\ 2\leq x <4\\\\=\dfrac{29}{8} -\dfrac{5x}{4} +\dfrac{x^2}{8} +K\\[/tex]

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