七年级上数学期末压轴题(三) 初一数学压轴题及答案
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2.http://wenku.baidu.com/view/8afab0c38bd63186bcebbc43.html
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绛旓細涓銆侀夋嫨棰2銆佸凡鐭ワ細鈹傗攤=0锛屽垯3銆佸皬鏄庡湪姹備竴涓椤瑰紡鍑忓幓x2鈥3x+5鏃讹紝璇涓哄姞涓妜2鈥3x+5锛屽緱鍒扮殑绛旀鏄5x2鈥2x+4锛屽垯姝ｇ‘鐨勭瓟妗堟槸___4銆佸鏋渪锛媦=5锛屽垯3锛峹锛峺=锛涘鏋渪锛峺=锛屽垯8y锛8x= 5銆佽瀵熶笅鍒楀崟椤瑰紡锛歺,-3x2,5x3,-7x4,9x5,鈥︽寜姝よ寰嬶紝鍙互寰楀埌绗2013涓崟椤瑰紡鏄...
绛旓細1鍙锋瘮10鍙峰揩浜3鍒55绉-3鍒05绉=50绉 鎵浠ヤ笉鑳界浉閬
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绛旓細鍏稿瀷渚嬮:銆愮増鏉冨綊閿﹀厓鏁板宸ヤ綔瀹,涓嶅緱杞浇銆戜緥1:(2012灞变笢鏋ｅ簞10鍒)鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓,鐜板皢涓鍧楃瓑鑵扮洿瑙掍笁瑙掓澘ABC鏀惧湪绗簩璞￠檺,鏂滈潬鍦ㄤ袱鍧愭爣杞翠笂,鐐笴涓 (-1,0) .濡傚浘鎵绀,B鐐瑰湪鎶涚墿绾縴=x2+x-2鍥捐薄涓,杩囩偣B浣淏D鈯杞,鍨傝冻涓篋,涓擝鐐规í鍧愭爣涓-3.(1)姹傝瘉:鈻矪DC鈮屸柍COA;(2)姹侭C鎵鍦ㄧ洿绾跨殑鍑芥暟...
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