# dayyann

Most popular questions and responses by dayyann-
## math

The price p(t) of a share at a time t satisfi es the equation p + t = 1 + e^-p sin(pi*t). Justify if p(t) is increasing or decreasing at t = 0.

*asked on May 3, 2013* -
## math

You randomly choose 28 days for your work in March. Find the probability that you are o work on 8th and 16th and 24th March.

*asked on May 3, 2013* -
## math

Positions of a woman and her dog at any time on the complex plane are z and 2z^2013 + z + 1, respectively. How many turns does the dog make around the origin if the woman goes once along the circle |z| = 1?

*asked on May 3, 2013* -
## math

Let F,G be vector fields on the plane such that both com-positions F dot G, G dot F : R^2 -> R^2 -> R^2 are the identity (x, y)->(x, y). Prove that the fi eld F is incompressible if and only if G is incompressible. (A vector fi eld is called

*asked on May 3, 2013*