Antenna Gain Pattern:
The gain G of a certain microwave dish antenna can be expressed as a function of angle by the equation:
G(θ)= |sinc 4θ| for –π/2 ≤ θ ≤ π/2
Where θ is measured in radians from the boresite of the dish, and sinc x = sin(x)/x. Plot this gain function on a polar plot, with the title "Antenna Gain vs θ" in boldface.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

answer: give more info

step-by-step explanation:

answer: you need the equation in the question so i can answer it

step-by-step explanation: