Questions are about function i.e mapping . function’s domain,range,inverse,when the function is one one ,onto,into,bijection.when a function is said to be an even and when odd.?definatin of domain of a function.defination of range of function.when domain and range is not defined for a given function have to be found?I have attached a question  PDF format ,for better understanding.1.rangeof the function f(x)= 7-xP(x-3) ?   2.f(x)=log(x+squ.root(x2+1) is even or odd function?