*Laws of log
*Laws of log
Posts
*Componendo & dividendo
*Componendo & dividendo
*Harmonic functions
*Harmonic function
Functions which are periodic as well as bounded are called harmonic functions
sinθ & cosθ are harmonic.
*Even & odd functions
*Even & odd functions
A function f (x) is called even, if f (- x) = + f (+x).
called, odd, if f (- x) = – f (+x).
otherwise called neither even nor odd.
cos and sec are even and remaining tan, cot, csc & sin are odd, thus
cos(- x) = + cos x & sec(- x) = + secx
sin(- x) = – sin x & csc(- x) = – csc x
tan(- x) = – tan x & cot(- x) = – cot x
*Quadrant system Signs of T – ratios are actually sign of cartesian coordinate system.
*Quadrant system Signs of T – ratios are actually sign of cartesian coordinate system.
^A long horizontal fixed wire carries a current of 100 A. Directly above and parallel to it is another wire carrying a current of 20 A and weighing 0.04 N/m.
^A long horizontal fixed wire carries a current of 100 A. Directly above and parallel to it is another wire carrying a current of 20 A and weighing 0.04 N/m. The separation between the two wires so that the upper wire is just supported by the magnetic repulsion is
