10等比数列 习题 难.pdf
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绛夋瘮鏁板垪 涔犻
涓€銆侀€夋嫨棰橈紙鍏?4灏忛锛涘叡70鍒嗭級 } 鈭 ( ) 1.宸茬煡鏁板垪 肀巤 锛堩睕鈭堩皪 锛夋槸绛夋瘮鏁板垪锛岉睅 =8锛岉睅 =1锛屽垯鍏瘮肀濤 鈥佲€ 肀 1 4 A.鈭? B.鈭? C.2 D.1 2 2 } ( ) 2.绛夋瘮鏁板垪 肀巤 鐨勫墠肀涢」鍜屼负肀 锛屼笖4肀 锛?肀 锛岉睅 鎴愮瓑宸暟鍒楋紝鑻ロ睅 =1锛屽垯肀 = 鈥佲€ 肀 肀 1 2 3 1 4 A.7 B.8 C.15 D.16 { } 涓紝肀 =4锛岉睅 =1 ( ) 3. 宸茬煡绛夋瘮鏁板垪 肀庬睕 3 6 锛屽垯鍏瘮肀濤 鈥佲€ 2 A.鈭? B.鈭? C.2 D.1 2 2 { }鐨勫叕姣旐睘>0锛屽叾鍓嶍睕椤瑰拰涓喉眴 肀 肀 ( ) 4. 宸茬煡绛夋瘮鏁板垪 肀 锛屽垯肀 涓庬眴 鐨勫ぇ灏忓叧绯讳负 鈥佲€ 肀 肀 7 8 8 7 A.肀 肀 >肀 肀 B.肀 肀 <肀 肀 C.肀 肀 =肀 肀 D.涓嶈兘纭畾 7 8 8 7 7 8 8 7 7 8 8 7 5. 宸茬煡 肀巤 }鏄椤逛负1鐨勭瓑姣旀暟鍒楋紝肀 鏄 肀巤 }鐨勫墠肀涢」鍜岋紝涓?肀 =肀 锛屽垯鏁板垪{1} 鐨勫墠5椤瑰拰 肀 肀 肀 3 6 肀 肀 ( ) 涓 鈥佲€ 15 31 31 15 A. 鎴? B. 鎴? C. D. 8 16 16 8 } 肀 肀 肀 { 涓睅 =1锛屼笖 4 5 8 =8锛岄偅涔堩眴 ( ) 6. 宸茬煡绛夋瘮鏁板垪 肀 鐨勫€兼槸 鈥佲€ 肀 1 5 肀 肀 肀 1 2 5 A.15 B.31 C.63 D.64 } 1 肀 肀 ( ) { 涓紝鍚勯」閮芥槸姝ｆ暟锛屼笖肀 肀 9 10 = 鈥佲€ 7. 宸茬煡绛夋瘮鏁板垪 肀 锛 锛?肀 鎴愮瓑宸暟鍒楋紝鍒 肀 1 3 2 2 肀 肀 7 8 A.1 2 B.