๐๐ผIf , then find f(3)
๐๐ผFor the above function, find a value of x for which f(x) is not defined (i.e. it has no answer).
๐๐ผIn a sale a bicycle price is reduced by 70% to ยฃ255. What was its price before the sale?
๐๐ผCalculate
๐๐ผFully simplify