anonymous
  • anonymous
expand sinx in powers of (x- pi/2) and then using it to approximate sin 91 degree!! Help plzzz!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
i already expanded the series! but cannot understand how to find the value of sin 91 degree!!
anonymous
  • anonymous
\[sinx = 1-\frac{ (x-\frac{ \Pi }{ 2 })^{2}}{2!}+\frac{ (x-\frac{ \Pi }{ 2 })^{4}}{4!}-......\]
anonymous
  • anonymous
@wio help plzzz!!

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anonymous
  • anonymous
Um, \(x=91\)
anonymous
  • anonymous
but it is in degrees!! how to put the value??
anonymous
  • anonymous
\[ 91^\circ = \frac{91\pi}{180} \]
anonymous
  • anonymous
yeah then what would be the value?? would it be 1.588 ??
anonymous
  • anonymous
Just plug it in.
anonymous
  • anonymous
thanks man!! appreciate it!!

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