Use implicit differentiation to find an equation of the tangent line to the curve at the given point. ( y sin(8x) = x cos(2y) ), ( (π/2, π/4) ).
a) Slope of the tangent line
b) Equation of the tangent line
c) ( /dy/dx ) at ( (π/2, π/4) )
d) ( /dx/dy ) at ( (π/2, π/4) )