anonymous
  • anonymous
critical point of 4x+4sin(x)
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Derivative set equal to zero.
anonymous
  • anonymous
4 +4cos(x) =0 cos(x) = -1 x= (2n-1)Pi n= 1,2,......n
anonymous
  • anonymous
i got zero when i did that but its online homework and its not accepting it

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cwrw238
  • cwrw238
differentiating = 4 + 4 cos x at a critical point 4 + 4 cos x = 0 cos x = -1 x is what myko said
anonymous
  • anonymous
try puting\[(2n-1)\pi\]
cwrw238
  • cwrw238
in degrees x = -180, - 540 and so on
anonymous
  • anonymous
or plus x = 180, 540
anonymous
  • anonymous
inflection point would be the second derivative equal to zero
anonymous
  • anonymous
Answer would be Pi/2
anonymous
  • anonymous
Cos(x)=-1 X would be 180 degrees
anonymous
  • anonymous
for the inflection point?
anonymous
  • anonymous
Second derivative set equal to zero and solve
anonymous
  • anonymous
is the second derivative -4sin(x)
anonymous
  • anonymous
?
anonymous
  • anonymous
Yes, that's correct.
anonymous
  • anonymous
is the critical point 0?
anonymous
  • anonymous
Yes that's it

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