Yes, but you can have "minus pi", of course, and that's negative.
pi minus pi is zero. Any number minus itself is zero.
the same as pi squared, which is 9.86960440109
A negative number that is not an integer, of course. Examples are minus 1.5, minus pi, minus square root of 2, etc.
Negative pi is - 3.14.
probobly because pi equals 3.14 and you can make 3.14 negative so yes you can have negative pi
Negative pi is a monomial, or a polynomial with one term. Negative pi, as well as positive pi, are not often used as polynomials, but it is still perfectly reasonable to do so.
In the domain [0, 2*pi],sin is negative for pi < x < 2*picos is negative pi/2 < x < 3*pi/2 andtan is negative for pi/2 < x < pi and 3*pi/2 < x < pi.Also, the same applies for all intervals obtained by adding any integer multiple of 2*pi to the bounds.
(-1/pi)-1 = -pi
No Pi is always the same.
Yes.
Pi equals the circumference of a circle divided by it's diameter. This value is approximately 3.14159265359, but goes on indefinitely. For most sums 3.14 is acceptable, or just use the pi button on a scientific calculator.