2.4 onc-sided limils limf(x) cxishony if X-C 1imf(x) +-x 1nfxlimfx) x-ct .)<-x limf(x) mSinX-l X-0X lim tanx.sec2 X-0 3x Sin'x 3x lim X-0 Sin2 5 3X 3(5) NIS sin2x 2 13 Sin'x x h+6 sub0 h+ChilF+fV) 2+ h+ htCh hJ217