高二上数学练习题及答案 (49).pdf

楂樹簩涓婃暟瀛︾粌涔犻

22

肀肀鈭?

锛锛

1锛庡凡鐭ユき鍦咰锛+=1(肀肀0)鐨勭蹇冪巼涓锛屼笖杩囩偣锛?锛?锛夛紟

22

肀肀2

锛?锛夋眰妞渾C鐨勬柟绋嬶紱

锛?锛夎繃鍧愭爣鍘熺偣O鐨勭洿绾夸笌妞渾浜や簬M锛孨涓ょ偣锛岃嫢妞渾涓婄偣P锛屾弧瓒硘PM|锛潀PN|锛岃瘯

璇佹槑锛氬師鐐筄鍒扮洿绾縋M鐨勮窛绂讳负瀹氬€硷紟

肀鈭?

=

瑙ｏ細锛?锛夎В锛氳妞渾鐨勫崐鐒﹁窛涓篶锛岀敱棰樿鍙緱{肀2锛

41

+=1

肀?肀?

22

肀肀

22222+=1锛

+c

缁撳悎a锛漛锛岃В寰梐锛?锛宐锛?锛屾墍浠ユき鍦嗗嚭鐨勬柟绋嬩负锛

63

锛?锛夎瘉鏄庯細鈶犲綋鐩寸嚎PM鐨勬枩鐜囦笉瀛樺湪鏃讹紝渚濋鎰忓彲寰楋細鐩寸嚎MN鐨勬柟绋嬩负y锛漻鎴杫

锛濓梗x锛屼粠鑰屽彲寰楃洿绾縋M鐨勬柟绋嬩负x=2鎴杧=鈭2锛屾鏃跺師鐐瑰埌鐩寸嚎PM鐨勮窛绂讳负2锛

鈭鈭鈭

鈶″綋鐩寸嚎PM鐨勬枩鐜囧瓨鍦ㄦ椂锛岃鐩寸嚎PM鐨勬柟绋嬩负锛歽锛漦x+m锛

璁綧锛坸锛寉锛夛紝P锛坸锛寉锛夛紝鐢遍璁剧煡N锛堬梗x锛岋梗y锛夛紝鑱旂珛{肀?肀橅饱+肀氾紝

22

112211肀肀

+=1

63

22+4kmx+2m2

鍙緱锛氾紙1+2k锛墄锕?锛?锛

2

4肀橅睔2肀鈭?

鍒檟+x=鈭锛寈鈥=锛庘埖|PM|锛潀PN|锛屸埓OP鈯N锛

122122

1+2肀1+2肀

鈫鈫

=鈭锛坸2

x+yy锛夛紳锕xx+锛坘x+m锛夛紙kx+m锛塢锛濓梗[锛?+kx+km锛坸+x锛

鈭错眰肀佲€