2013年CIE剑桥国际考试IGCSE数学真题(43)

r(d)...............................................[3](e)(i)Aright-angledtriangleisthecrosssectionofanotherprism.Thistrianglehasheight4.5cmandbase11.0cm.Bothmeasurementsarecorrectto1decimalplace.Calculatetheupperboundfortheareaofthistriangle.Answer(e)(i)........................................cm2[2](ii)Writeyouranswertopart(e)(i)correctto4significantfigures.Answer(e)(ii)........................................cm2[1]_____________________________________________________________________________________©UCLES20130580/43/M/J/13[Turnover畅享冠军纯正特产?快来绵羊国正品代购!101For5(pletethistableofvaluesforthefunctionf(x)=–x2,x¸0.Examiner′sxUsex–3–2–1–0.5–0.20.20.5123f(x)–9.33–4.5–2–2.254.96–3.5–8.67[3]12(b)Drawthegraphoff(x)=x–xfor–3YxY–0.2and0.2YxY3.y54321x–3–2–10123–1–2–3–4–5–6–7–8–9–10[5]©UCLES20130580/43/M/J/13