Asap handwritten solution acceptable Urgent (4) Let f(x) be the function with domain R given by the ruleif x = Q, andif x # Q.f(x) =X0(a) Prove that limo f(x) = 0.(b) Prove that if a ‡ 0, then limx→a f(x) does not exist.DEFINITION: Let f be a function and a € R. We say that the limit of f(x) as x approaches a fromthe right is L provided:For every > 0, there is some d > 0 such that for all x satisfying a < x < a+d, wehave that f is defined at x and also that f(x) − L| < €.In this case, we writelim f(x) = L.x→a+

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(4) Let f(x) be the function with domain R given by the rule X if x EQ, and 0 if x # Q. f(x) = = (a) Prove that lime-o f(x) = 0. (b) Prove that if a 0, then limx→a f(x) does not exist. DEFINITION: Let f be a function and a E R. We say that the limit of f(x) as x approaches a from the right is L provided: For every > 0, there is some 8 >0 such that for all x satisfying a < x