Determine whether the equation is exact If it is then solve it e 9y 7t dt 8 9e dy 0 For the given equation write out the condition for exactness d dy d et 9y 7t 8 get Select the correct choice below and if necessary fill in the answer box to complete your choice Type expressions using t and y as the variables OA The equation is exact because N t y at t y M dy OB The equation is not exact because M dy t y An implicit solution in the form F t y C is N at t y C where C is an arbitram