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Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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#8a using Descartes's rule of sign

Transcribed Image Text:8. Verify the following assertions.
If all the coefficients of an equation are positive
(a)
and the equation involves no odd powers of x,
then all its roots are imaginary.
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