Questions asked by Mahmoud N.

• Back to user's profile
• If z = x^2 + 2y^2 , x = r cos θ , y = r sin θ , find the partial derivative (∂z/∂θ)_y ?
  
• If #x = yz# and #y = 2 sin(y + z)#, find #(dx)/(dy)#?
  
• Int int y dx dy over the triangle with vertices (−1, 0), (0, 2), and (2, 0).?
  
• An electron at rest is released far away from a proton, toward which it moves. (a) Show that the de Broglie wavelength of the electron is proportional to#sqrt (r) #, where r is the distance of the electron from the proton.?