Asked by Kevin

In the equation y=4cos 6x, what does 6 represent?

In general for the equation y-acosbx, what does b represent?

Answers

Answered by drwls
The six in the first equation represents a reciprocal wavelength, also known as the wave number.

y - a cosbx is NOT an equation

An equation would be y = a cos bx
b would be the wave number.
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