绗?/p>
1
椤碉紙鍏?/p>
66
椤碉級
2019
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涓�銆侀�夋嫨棰橈紙姣忓皬棰?/p>
3
鍒嗭紝鍏?/p>
30
鍒嗭級
1
锛庝笅鍒楀悇鏁颁腑锛屾渶澶х殑鏄紙
锛?/p>
A
锛庯梗
2
B
锛庯梗
C
锛庯梗
3
D
锛庯梗
1
2
锛庝笅鍒楄绠楁纭殑鏄紙
锛?/p>
A
锛?/p>
3
锕?/p>
1
=
锕?/p>
3
B
锛?/p>
锛?/p>
a
4
锛?/p>
2
=a
8
C
锛?/p>
a
6
梅
a
2
=a
3
D
锛?
锕?/p>
=
3
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锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
4
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锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>
5
锛庡浜庡嚱鏁?/p>
y=
锛屼笅鍒楄娉曢敊璇殑鏄紙
锛?/p>
A
锛庤繖涓嚱鏁扮殑鍥捐薄浣嶄簬绗竴銆佺涓夎薄闄?/p>
B
锛庤繖涓嚱鏁扮殑鍥捐薄鏃㈡槸杞村绉板浘褰㈠張鏄腑蹇冨绉板浘褰?/p>
C
锛庡綋
x
锛?/p>
0
鏃讹紝
y
闅?/p>
x
鐨勫澶ц�屽澶?/p>
D
锛庡綋
x
锛?/p>
0
鏃讹紝
y
闅?/p>
x
鐨勫澶ц�屽噺灏?/p>
6
锛庡鍥撅紝鍦ㄢ柍
ABC
涓紝鈭燘=90掳锛?/p>
AC=5
锛?/p>
BC=3
锛屽垯涓嬪垪涓夎鍑芥暟琛ㄧず姝ｇ‘鐨勬槸锛?/p>
锛?/p>
A
锛?/p>
sinA=
B
锛?/p>
cosA=
C
锛?/p>
tanA=
D
锛?/p>
tanB=
7
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8
浠斤級
锛屽皬鏄庝竴娆?/p>
鎶曢晼鑳借幏寰楀鍝佺殑姒傜巼鏄紙
锛?/p>