Aã¬ãã« â æç§æžäŸé¡ã¬ãã«ïœæç§æžæŒç¿åé¡ã¬ãã«
ã»åé¡éã®äŸé¡ã®ãããªæããåé¡
ã»æç§æžã®æŒç¿åé¡ã®ãããªåºæ¬çãªåé¡
ã»å ¥è©Šã§ããèŠãããããããããªå žååé¡
Bã¬ãã« â å ¥è©Šæšæºã¬ãã«ïŒæç§æžçºå±åé¡ã¬ãã«ïŒ
ã»é »åºã§ã¯ãªããšãåºæ¬çãªææ³ã§è§£ããåé¡
ã»å·¥å€«ãå¿ èŠãªåé¡ã ãèªå°ãäžå¯§ãªåé¡
ã»ç解åãåãããåé¡
ã»èšç®ãããç ©éãªåé¡
Cã¬ãã« âå ¥è©Šçºå±ã¬ãã«
ã»å·¥å€«ãå¿ èŠã§èªåã§æ¹éãèŠã€ãåºãåé¡â
ã»æ§ã ãªææ³ãçšããåé¡
ã»èšç®ããšãŠãç ©éãªåé¡
Dã¬ãã« â é£åã¬ãã«
ã»é«åºŠãªæèåãèŠæ±ããããããªåé¡
ã»æ¹éãç«ãŠã«ããåé¡
ç·åè©äŸ¡
ãã¹ãŠãåºæ¬(Aã¬ãã«)ïœæšæº(Bã¬ãã«)ã®åé¡ã§æ§æãããŠããã
解æ³ãæãã€ããªããããªåé¡ããªãããã¹ãŠè§£ããããšããããããªå žååé¡ã§ããã
6é¡äž5é¡ãéžæ解çã®å ŽåãäŸå¹Žã¯å¶éæé(120min)ã«å¯ŸããŠåé¡éãå€ãèšç®ãããªã¥ãŒããŒã§ãã£ãããä»å¹Žã¯ããã§ããªãããã¡ããäœè£ã¯ãªããã4ããªã©ã¯ç©åèšç®ãããããªã¥ãŒããŒã§ããããå šéšè§£ããŠãæéãŽã£ããã«çµããçšåºŠã§ãããšæãããã
ãŸããå šäœãéããŠå³ç€ºãã¹ãåé¡ãå€ããå³ç€ºã«æéåããšæéã足ããªããªã£ãŠããŸããä»åŸã®å匷ã®äžã§ãå³ç€ºã®ç¿æ £ãã€ããŠããå¿ èŠãããã
ã1ã座æšå¹³é¢ïŒç·åBã¬ãã«(20minçšåºŠã§å®çããã)
ããçšåºŠäžå¯§ãªå³ç€ºãå¿ èŠãšããåé¡ã
æ°åŒã ãã§è¿œãããšã¯å°é£ãªãããå³ãæžããŠç¶æ³ãæŽçããç¿æ £ãã€ããŠãããã©ããããã€ã³ããšãªãåé¡
(1)Aã¬ãã«(3min)
äžè§åœ¢ã®å æ¥åã®ååŸãæ±ããåé¡ã
ãé¢ç©ã«çç®ãããŠè§£ãããç¹ãšçŽç·ã®è·é¢å ¬åŒã䜿ã£ããäžå¿ãšçŽç·ã®è·é¢ãååŸãã§è§£ããã®2éãã®è§£æ³ãèãããããã©ã¡ãã§ããããæéã«å€§å·®ã¯ãªãããé¢ç©ãç°¡åã«æ±ããããã®ã§è§£èª¬ã§ã¯ãé¢ç©ã«çç®ããã解æ³ã§è§£ããŠããã
(2)Aã¬ãã«(7min)
åãšçŽç·ã®äº€ç¹ãæ±ããåé¡ã
ãã é£ç«ããŠè§£ãã ããªã®ã§ç¹æ®µæ³šæããã¹ãããšã¯ãªãã
解ã2ã€åºãŠããã®ã§ããããEã®x座æšãšDã®x座æšã§ããããšãç解ããã¹ãã
(3)Bã¬ãã«(10min)
(2)ã®æ¡ä»¶ã®ããšã§ãlãšå€æ¥åã®äº€ç¹ãéãx軞ãšå¹³è¡ãªçŽç·ãå æ¥åãšæ¥ããããšã瀺ã蚌æåé¡ã
ãŸãã¯å³ãæžããŠç¶æ³ãææ¡ã§ããã°ããEã®y座æšã2rã«ãªãããšã瀺ãã°ããããšããæ¹éãæµ®ãã¶ã§ãããã
ãŸãã¯ã座æšå¹³é¢äžã§åãšçŽç·ãæ¥ãããâãäžå¿ãšçŽç·ã®è·é¢ãååŸããçšããŠrãšaã®é¢ä¿åŒãæ±ãããããã«(1)ã§æ±ããrãä»£å ¥ããŠa^2ãæ±ãããããã§ç¡çã«aãæ±ããããšãããšã±ãã€ããã2éæ ¹å·ã«ãªã£ããã§ç ©éãªèšç®ã«ãªã£ãŠããŸãã
Eã®y座æšã®äžã«ã¯a^2ãããªãã®ã§ããã®ãŸãŸa^2ãä»£å ¥ããŠçµäºã
(3)å®çã®ãã€ã³ãã¯
ã»aãæ±ããŠaãä»£å ¥ãããa^2ãšããŠä»£å ¥ãã
ã»Eã®y座æšãçŽæ¥2rãšããŠå°ããªã(解çã®æåŸåç §)
ã«æ°ãã€ããããã°ã§ããã§ãããã
ã2ãäžè§é¢æ°ã»åº§æšïŒç·åBã¬ãã«(20min以å ã§è§£çããã)
çããæ±ããã ããªãæç§æžã¬ãã«ã§ãããã解ã®åå³ãæ ããšè«è¿°äžè¶³ã§æžç¹ãå€ããªã£ãŠããŸãã现ããæ¡ä»¶ã«ãã£ããæ°ã䜿ã£ãŠåçäœæããããã
(1)Bã¬ãã«(10min)
ç¶æ³ãææ¡ããã®ãã¡ãã£ãšããã©ãããã
ã1ãåæ§ãããçšåºŠäžå¯§ã«å³ç€ºããªããšçŽè§ã®å Žæãªã©ãåéãããã®ã§æ³šæãå¿ èŠã
Bã®x座æšèªäœã¯ç°¡åã«æ±ãããããããåæ¯ã0ã§ãªãããšã®ç¢ºèª(蚌æ)ãã解ãè² ã§ããããšã®ç¢ºèª(蚌æ)ããããªããã°ãªããªãã
ãããããã®ç¢ºèªã®çºæ³ããåºãªãã£ã人ã¯ä»åŸã®æŒç¿ã§ãåžžã«æ³šæãããã
ãåæ¯ã0ã§ãªãããšã®èšŒæãã¯åæãããŠç¯å²ãæ±ããã®ãäžçªããã ããã
(2)Bã¬ãã«(8min)
äžç¹ã®x座æšãæ±ããŠããã0以äžã«ãªãΞã®ç¯å²ãæ±ããåé¡ã
äžçåŒã解ãéã«äžè§é¢æ°ã®æ¹çšåŒã®éåã2次ã®é ã®ã¿ãªã2Ξã«ããããŠåæããèŠããŠãããã©ããããã€ã³ããšãªãã
è£è¶³ïŒäžè§é¢æ°ã®æ¹çšåŒã»äžçåŒ/æ倧æå°åé¡ã®ãã¿ãŒã³
ã»sinΞãcosΞã«ãããã
ã»t=sinΞ+cosΞãšãããŠã2ä¹ããŠåæããŠ
ã»2次ã®é ã®ã¿ãªã2Ξã«ããããŠåæ
ã3ãæ°åã»åº§æšïŒç·åBã¬ãã«(25min以å ã§å®çããã)
座æšå¹³é¢ã®x座æšãæ±ããããããç¹åã®åé¡ãé£æ床çã«ã¯æšæºã ãã座æšã«ãããäžè§åœ¢ã®é¢ç©å ¬åŒãããçå·®Ãçæ¯ã®åããªã©ãããã®ã§æšæºåé¡ã確å®ã«è§£ããæ±ããããã
(1)Bã¬ãã«(10min)
ãã¯ãå³ãæžããŠç¶æ³ãææ¡ãããã«ãŒã«ã¯è€éã§ã¯ãªãããx1ããx2ãx3ãåºãã°ããã«ã«ãŒã«ãææ¡ã§ããã ãããããšã¯ãå ¬åŒãç¹(p,q)ãéãåŸãmçŽç·ã®æ¹çšåŒïŒy=m(x-p)+qãã«ä»£å ¥ããŠãxåçãæ±ããã°çæ¯æ°åã®æŒžååŒãåŸãããã
(2)Aã¬ãã«(5min)
ã座æšã«ãããäžè§åœ¢ã®é¢ç©å ¬åŒããç¥ã£ãŠããã°äžç¬ã§ãšããã
ç波倧åéšè ã ãšèŠããŠãããã©ãããååŠãåãããšãããããã確å®ã«èŠããŠåŸç¹ãããã
(3)Bã¬ãã«(10min)
ãçå·®Ãçæ¯ã®åãã®åé¡ã
Tãæ±ããŠçµäºã«ããªãããã«æ³šæããã°è§£ããã§ãããã(ããšèšç®ãã¹ã«ã泚æ)
ãŸããã€ãŒãºã§ã¯çæ¯ã®åãæ¥æ¬èªã§èŠããããã«æå°ããŠãããããã¯nä¹ã§èŠãããšè§£ããªããªãåé¡ãå€ãããã§ããããã£ãããšé æ°ä¹ã§ãããšããŠèŠãããã
ã4ã埮å(åªä»å€æ°)ã»ç©å(å転äœ)ïŒç·åBã¬ãã«(30min以å ã§è§£çããã)
(1)Aã¬ãã«(12min)
ãã ã®ç©åèšç®ã
I1ã¯äœè£ã§ããããI3ããå¶æ°ä¹ãªãåè§ã§åæ°ãäžãããããšãèŠããŠããã°ããã2åããã ããI2ã§åç©(ç©å)ã®å ¬åŒã䜿ãããšãæãåºããŠãå æ³å®çããå°ãããšãã§ãããã©ããããã€ã³ããç波倧ã§äžè§é¢æ°ã¯é »åºãªã®ã§åç©ã®å°ãæ¹ããã£ãããšããŒããŠãããã
èšç®éãããããŒãªã¥ãŒããŒã
(2)Bã¬ãã«(7min)
åªä»å€æ°è¡šç€ºãããã°ã©ãã®å³ç€ºã
åªä»å€æ°ã®å¢æžè¡šã¯6段ã§æžãããšãä»åã®åé¡ã¯å調å¢å ãªã®ã§æ±é²ãªã©ã®è§£çã§ã¯å¢æžè¡šãæžããŠããªãããã ãããæžããã»ããããã ããã
(3)Bã¬ãã«(8min)
å転äœã®äœç©ã®åé¡ã
åªä»å€æ°è¡šç€ºã®å Žåã¯ã解çã®ããã«å€æ°å€æ(眮æç©å)ãå¿ èŠã«ãªãã
èšè¿°ããäžã§æ°ãã€ããã¹ãã¯ãdyãdΞã«å€æããéçšããã£ãããšæžããªããšæžç¹ã«ãªãããšãã€ãŸãã¯è§£çã®ããã«æžããªããã°æžç¹å¯Ÿè±¡ãšãªãã
æåŸã¯(1)ã®I1,I2,I3ãä»£å ¥ããã ããªã®ã§èšç®ãã¹ã«æ°ãã€ããŠçããåºããã
ãŸãã解çã§VãI1,I2,I3ã䜿ã£ãŠè¡šããŠæžããŠãããšã(1)ã§èšç®ãã¹ããŠããŠããããŸã§ã§éšåç¹ãããå¯èœæ§ãé«ãã
ã5ãæ°åã»æ¥µéïŒç·åBã¬ãã«(25min以å ã§å®çããã)
ã解ããªã挞ååŒã¯å ·äœåããŠåž°çŽæ³ãã®åé¡ã
倧åãªã®ã¯ããã®æŒžååŒãã解ããªã挞ååŒãã§ãããšæ°ã¥ããããšããã®ããã«ãŸãã¯è§£ãã挞ååŒã®ãã¿ãŒã³ããã£ãããšèŠãããã
(1)Aã¬ãã«(3min)
èšç®ãã¹ããªãããã«ã
ãŸããéäžèšç®ãäžå¯§ã«(ããšã§åž°çŽæ³ãããšãã«åãèšç®ããã)
(2)Aã¬ãã«(10min)
解ããªãåæ°æŒžååŒã¯ã ããã(çå·®/çå·®)ã«ãªã£ãŠããããšãå€ãã
ããŸã«(a^n+p/b^n+q)ã®ãããªåœ¢ã®ãã®ãããã
ãããç¥ã£ãŠããã°äžè¬é ã¯ããäºæ³ã§ããã§ããããæåcãå ¥ã£ãŠãããšããããããªããŠæ°ã¥ããªã人ããããå®æ°ã§ããããšãæèããŠãããã°æ°ã¥ãããšæãã
ããšã¯ãæ®éã«åž°çŽæ³ã§é²ããã°ããã
泚æç¹ã¯3ã€
ã»ãæ°åŠçåž°çŽæ³ã§ç€ºãããšæžãããš
ã»ãak+1=ã/ããšãªãããšã瀺ãããšãŽãŒã«ã®åœ¢ãæžããŠããããš
ã»æŒžååŒãšBã䜿ãããš
ããããã©ããªåé¡ã§ãåž°çŽæ³ã®å Žåã¯æèããŠèšè¿°ã®çæ¡ãäœããã
(3)Bã¬ãã«(10å)
ããããããªãããèšç®ããã°ãåæ°åŒã®åãã®åœ¢ã«ãªãã®ã§ãBBB(éšååæ°å解)ããããåé¡ã§ãããšæ°ã¥ããã
ã€ãŒãºã§ã¯ããååŸã§æ¶ãããã§ã¯ãªããçç®ã§æ¶ããããšæå°ããŠããã
æåŸæ¥µéã¯ããŸãçšåºŠã
åãæ±ããã ããªãæç³»ã«ãšã£ãŠãããåé¡ã«ãªãã ããã
ã6ãè€çŽ æ°å¹³é¢(è»è·¡)ïŒç·åBã¬ãã«(25min以å ã§å®çããã)
(1)Bã¬ãã«(10min)
å ¥è©Šé »åºã®åŒå€åœ¢ã§ãããç波倧ã¯è€çŽ æ°ã®åé¡ãé«ç¢ºçã§åºé¡ããã®ã§ããã®åŒå€åœ¢ãç¥ããªãã£ã人ã¯ããè€çŽ æ°ã®åé¡æŒç¿ãããŠããããã«ã
(2)Bã¬ãã«(12min)
ãw+wããŒããå®æ°ã§ããã®ã§ãA,Bã¯å®è»žäžãã€AB=2ã§ããããšã«æ°ã¥ãã°æ倧ã¯ç°¡åã«æ±ãŸãã
ãŸãããã®ãšãã®å³ãå³ç€ºããã°PBâ¥å®è»žãªã®ã§ãPAãçŽåŸã§ããããšã«ãæ°ã¥ããã®ã§åŸã¯ç°¡åã