Find the derivative of f(x) = cos (x) (1 x+3). - Given: g(2)=3, g'(2)=-2, h(2)=-1, h'(2)=4. a) If f(x)=2g(x)+h(x), find f'(2). b) If f(x)=4-h(x), find f'(2). g(x) c) If f(x)= find f'(2). h(x) d) If f(x) = g(x)h(x), find '(2). find the equations of the tangent and normal lines to the curve f at the given point. f(x)=(4x+1)x ; x=1 Given x2xy + y = 4, find dy dx find the tangent line to the graph of the given equation at the indicated point. (x + y) = 4xy (1, 1) Given x 3xy = 12 2xy, find dy - - dx'