To add to this some more polynomials...
Is 5x^1.5 + 1.5x - 3 a polynomial? Why/not? And can you explain what is the power of 1.5 mean? I dont think i understand.
Lasly, cos(5x + 1) is it a poly or not? Please explain!
Thanks so much!
Is 3^x + 3 a polynomial?
On my sheet it is written as 3 superscript x + 3. Thanks!
Also there is another question thanks! :
A right square pyramid, vertex O, stands on a square base ABCD. The height is 15cm and base length is 10cm. Find:
a. the length of the slant edge : I got that: 5 root 11.
b. the inclination of a slant edge to the base : 64.76 degrees
c. the inclination of a sloping face to the base : 71.57 degrees
d. the madnitude of the angle between two adjacent sloping faces : I have no idea about this one! Please help it is the angle between the faces?! I can't picture it.
Wikipedia's definition of a polynomial is:Originally Posted by phgao
"In mathematics, a polynomial is an expression in which constants and
variables are combined using (only) addition, subtraction, and multiplication.
Thus, 7x2+4x−5 is a polynomial; 2/x is not."
I would also add to this definition that only a finite number of
additions, subtractions, and multiplications are to be allowed, as otherwise
we will find we have allowed infinite series, which I am pretty sure is not
So yes is a polynomial.