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...Thequotientrule mc ty quotient aspecial rule the exists for dierentiating quotients of two functions this unit illustrates in order to master techniques explained here it is vital that you undertake plenty practice exercises so they become second nature after reading text and or viewing video tutorial on topic should be able state dierentiate contents introduction du dv if y u then dy vdx udx v dx c www mathcentre ac uk often come as by which we mean one function divided another example cosx x wewrite where identify there a formula can use called will states keypoint let s see how works when try suppose want wehave identied wenowwrite down derivatives these sinx wenowput all results into given quote everytime get know notice minus sign an both terms numerator top line take out common factor xsinx cancelling denominator have found required derivative werecognise quoting following establish result tanx recall cos sin simplied using standard written secx because dened taking wecan write a...