Please help me to solve this equation...
theta= 2*atan(x*tan(alpha /2)/y)
where
alpha = 45 degree
x = 12.5
y = 12.0
i don't know what is the value of "atan". if anyone know then help me....and suggest me any book where i can find the solution....thanks.
You don't need to "solve" for anything here! It's just a matter of "plug n' chug" into the expression given (the already gave you the values of , x, and y) so you can find . And as topsquark said, atan most likely means the inverse tangent function arctan(x), also written as .