Being the one-dimensional equation a²w ,a²w at? Where w is the height of the wave, x is the distance,t is the time and c is the speed at which waves propagate. show that the function is a solution of the one-dimensional equation (b) w = cos (2x + 2ct)

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Rate of Change

The relation between two quantities which displays how much greater one quantity is than another is called ratio.

Slope

The change in the vertical distances is known as the rise and the change in the horizontal distances is known as the run. So, the rise divided by run is nothing but a slope value. It is calculated with simple algebraic equations as: