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

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
Descartes Rule

02/01/14

#### Descartes rule of signs

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

## Still looking for help? Get the right answer, fast.

Get a free answer to a quick problem.
Most questions answered within 4 hours.

#### OR

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.