1. The hyperbolic functions cosh and sinh are defined by the formulas cosh(a) = sinh(x) = 2 2 The functions tanh, coth, sech and csch are defined in terms of cosh and sinh analogously to how they are for trigonometric functions: sinh (x) cosh(x) tanh(x) = coth(x) = cosh(a) sinh(x) 1 1 sech (a) = cosh ( ac ) csch(2) sinh(x) (a) Find formulas for the derivatives of all six of these functions. You must show all of your work