y sin 12x = x cos 2y, (pi/2, pi/4)
Find the tangent line to the curve at the given point.
dy/dx * sin12x+ 12 y cos12x= cos2y-xsin2y dy/dx
first, solve for dy/dx, that is the slope.at x,y.
Now put in the x,y in that equation, and solve for b.
Can anyone else elaborate?