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?????????2016????????????

2016?????????????

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2?????AOB???OA??????AOB=37�36???OB????E??E????????OA???D???????DC???OB?????DEB????? ?

A?75�36? B?75�12? C?74�36? D?74�12? 3???????12?????????

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4??????ABC??AB=AC??A=30

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A?15� B?17.5� C?20� D?22.5�

5?????x???x2+3x+a=0??????2???????? ? A?5 B??1 C?2 D??5

6??3???????????????????3???????????????????????????????????????????????? ?

A?? B?? C?? D??

7?????ABC????6?AC=3????ABC?AB?????????C????AD??C???P???AD????????BP??????? ?

A?3 B?4 C?5.5 D?10

8????x???????x2?2x+kb+1=0????????????????y=kx+b????????? ?

A? B? C? D?

9???????ABCD????AC=8?DB=6?DH?AB?H??DH??? ?

A? B? C?5 D?4

10????P?a+1?? +1????????????????a???????????????? ? A?C?

B? D?

11????AB??O?????CD?AB??CDB=30�?CD=2? ?

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A?2? B?? C? D?

12??abc=0??????????y=ax2+bx+c?a?0???????????????????a+b+c?0??a?b??4ac?b2?0?????????? ?

A?1? B?2? C?3? D?4?

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?2?1+

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14??????????????????????????????????AM=4??AB=8???MAD=45�??MBC=30�???????CD?0.1???????

=1.41?

=1.73??

15????????3??O????AB??CD????E???AC?BD??AC=2??tanD=?

16?????A??????4?0????y=??ACD=90�??n????

x+n???????B?C???AC??

17??????ABC???C=90�?AC=BC=???ABC??A???????60�?

?AB?C???????C?B??C?B=

18????a1?a2?a3?�?????a1=?an=a2016=?

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19?????????

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20?Pn??n????????????????????????????????????Pn?n??????Pn=

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?1??????????????P4=??????P5= ?2???????????????????????????a?b???

21??????????????????????????????450???????????????????50?????????????t???????????????

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22???????OABC??OA=3?OC=2?F?AB???????F??A?B??????F??????y=?k?0?????BC????E? ?1??F?AB??????????????

?2??k??????EFA??????????????

23?AC??O????BC??O???AB? ?PBA=?C?????P??O??????PB??1????PB??O????

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