Q.21 let f0 0, oo) be a continuous function such that fo <1+2 )ds, for all t e (0.1 then a))<1 +t for all t e j0,1]. c) f)=1+ t for all t e lo,1). (b) ft) > 1+

Q.21 Let f0 0, oo) be a continuous function such that FO <1+2 )ds, for all t E (0.1 Then A))<1 +t for all t e j0,1]. C) f)=1+ t for all t E lo,1). (B) ft) > 1+ t for all te [0, 1). (D) S)<1+ for all t E [0, 1.