3 Answered Questions for the topic Descartes

03/13/19

Could 'cogito ergo sum' possibly be false?
I've heard it postulated by some people that *"we can't truly know anything"*. While that does seem to apply to the vast majority of things, I can't see how *'cogito ergo sum'* can possibly be... more
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Expert Answers •4

11/15/15

Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the following function: f
Use descartes rule of signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the following function: f(x)= 9x^7 + 3x^5 - 8x^3 + 7x -1
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Expert Answers •1
Descartes Rule

02/01/14

Descartes rule of signs
By Descarte's rule of signs  P(x)=x3-2x2-3x-3 has how many positive real zeros ? has how many negative real zeros (enter the smaller number first)
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Expert Answers •1

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