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1. A question on continuous function

thank you for the help..i have got it..
2. A question on continuous function

thnx..bt i knew dis function is rieman integrble...was stuck up sumwhere else...
3. A question on continuous function

this is neithr a homework nor a test question...m doing my msc. now...its a question of riemann integral dat i studied in b.sc...was going thru my notes...v actually need 2 show dis function is riemann integrable bt v cannot use d result"a bdd. functn for which d set of discontnuities has...
4. A question on continuous function

Thanks for the help..but I'm still not very clear with your answer. I was thinkng of doing this by using sequential continuity..like takng a random seq. <an> of non zero rationals converging to a non zero rational x. And then claiming <f(an)> not converging to f(x)..so dont know whether this...
5. A question on continuous function

can anybody please help me in solving the following question: consider the function on [0,1] f(x)=1/q if x=p/q, p&q are non zero & p,q are positive integers, p/q is in simplest form...