Find an equation of the tangent line to f(x) = 3 cos(x) at x = W / N (Let y = f(x) and express the equation of the tangent line in terms of y and x.) equation:Find an equation of the tangent line to f (x) = 4 sec (x) at x = 7; (Express numbers in exact form. Use symbolic notation and fractions where needed. Express equation in terms of y and x, where y is the dependent variable and x is the independent variable.) Use the Product and Quotient Rules as necessary to nd the derivative of f (x) = 7x2 0050:) (Use symbolic notation and fractions where needed.) f' = E Find the derivative of f (x) = 7 sec(x) + 15 cot(x). (Use symbolic notation and fractions where needed.) f'(x> = Compute the derivative of H (t) = 8 sin(t) 8602(1). (Use symbolic notation and fractions where needed.) no: Compute the derivative of f (x) = 5 tan(x) sec(x). (Use symbolic notation and fractions where needed.) W) =