Google Image Result for http://www.eetasia.com/IMAGES/EEOL_2008MAR15_POW_NT_01_fig1.jpg
how can i get the equation of the function in red?
Google Image Result for http://www.eetasia.com/IMAGES/EEOL_2008MAR15_POW_NT_01_fig1.jpg
how can i get the equation of the function in red?
did you not read the first line in my post?
fyi, $\displaystyle \frac{\pi}{25}$ is not the period ...looks like a basic sine wave with amplitude of 175 and period of 50 ...
I recommend you research the role of the value $\displaystyle B$ in the equation $\displaystyle y = A\sin(Bx)$.