33°41’数学上是什么意思 数学中的Sin和Cos是什么意思
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33°41’-----三角形中角的度数（大小）
1度 ==60分
33度41分，角度的表示方法
绛旓細33,41,49,锛57锛夛紝(65)锛岃繖涓琛屾瘡涓暟鏄墠涓涓+8 1,4,9,16,锛25锛,锛36锛夛紝杩欎竴琛屼緷娆℃槸涔濅節涔樻硶琛ㄧ殑锛氫竴涓寰椾竴锛屼簩浜屽緱4锛屼笁涓夊緱涔濄傚洓鍥涘崄鍏紝浜斾簲浜屼簲锛屽叚鍏笁鍏叚銆
绛旓細绗28 twenty-eighth銆 绗29 twenty-ninth 銆佺30 thirtieth銆 绗31 thirty-first銆 绗32 thirty-second 銆佺33 thirty-third 銆佺34 thirty-fourth銆 绗35 thirty-fifth 銆佺36 thirty-sixth 銆佺37 thirty-seventh 銆佺38 thirty-eighth銆 绗39 thirty-ninth 銆佺40 fortieth 銆佺41 forty-first...
绛旓細姝ｇ‘绛旀锛欰n=5+(n+5)(n-1)/2+(1+(-1)^n)/4 鏃n=5+(n^2+4n-5)/2+(1+(-1)^n)/4 瑙ｆ硶锛欰2=A1+3+1 A3=A2+4+0 A4=A3+5+1 鈥︹n=A(n-1)+(n+1)+(1+(-1)^n)/2 绛夊紡涓よ竟鐩稿姞锛岀瓑鍙峰乏鍙宠竟鍚屾椂鍘绘帀鐩稿悓鐨勯」锛屽嵆鍙緱An鐨勯氶」鍏紡 楠岀畻A1=5锛岄氶」鍏紡浜︽垚绔嬶紝...
绛旓細浣犲彲浠ユ妸F鎯虫垚鏄釜涓夌淮鐨勫浘褰,绗笁涓含搴(Z)浼氶殢鐫涓や釜鑷彉閲(XY)鑰屽彉鍖,灏辨槸璇村湪骞抽潰涓婄殑浠绘剰鍧愭爣閮藉搴旂潃涓涓珮灏卞儚涓搴у北,楂樹綆涓嶅钩銆 杩界瓟 鐜板湪浣犲鍦ㄧ殑浣嶇疆鏄疐=0,涔熷氨鏄浣犵幇鍦ㄨ繖涓猉Y鍧愭爣瀵瑰簲鐨勯珮搴︿负0銆 1 宸茶禐杩 宸茶俯杩< 浣犲杩欎釜鍥炵瓟鐨勮瘎浠锋槸? 璇勮 鍒嗕韩 鏂版氮寰崥 QQ绌洪棿 涓炬姤 鏀惰捣 鐧惧害...
绛旓細41 绾挎鐨勫瀭鐩村钩鍒嗙嚎鍙湅浣滃拰绾挎涓ょ鐐硅窛绂荤浉绛夌殑鎵鏈夌偣鐨勯泦鍚 42 瀹氱悊1 鍏充簬鏌愭潯鐩寸嚎瀵圭О鐨勪袱涓浘褰㈡槸鍏ㄧ瓑褰 43 瀹氱悊 2 濡傛灉涓や釜鍥惧舰鍏充簬鏌愮洿绾垮绉,閭ｄ箞瀵圭О杞存槸瀵瑰簲鐐硅繛绾跨殑鍨傜洿骞冲垎绾 44瀹氱悊3 涓や釜鍥惧舰鍏充簬鏌愮洿绾垮绉,濡傛灉瀹冧滑鐨勫搴旂嚎娈垫垨寤堕暱绾跨浉浜,閭ｄ箞浜ょ偣鍦ㄥ绉拌酱涓 45閫嗗畾鐞 濡傛灉涓や釜鍥惧舰鐨勫搴旂偣...
绛旓細38 鐩磋涓夎褰㈡枩杈逛笂鐨勪腑绾跨瓑浜庢枩杈逛笂鐨勪竴鍗 39 瀹氱悊 绾挎鍨傜洿骞冲垎绾夸笂鐨勭偣鍜岃繖鏉＄嚎娈典袱涓鐐圭殑璺濈鐩哥瓑 40 閫嗗畾鐞 鍜屼竴鏉＄嚎娈典袱涓鐐硅窛绂荤浉绛夌殑鐐,鍦ㄨ繖鏉＄嚎娈电殑鍨傜洿骞冲垎绾夸笂 41 绾挎鐨勫瀭鐩村钩鍒嗙嚎鍙湅浣滃拰绾挎涓ょ鐐硅窛绂荤浉绛夌殑鎵鏈夌偣鐨勯泦鍚 42 瀹氱悊1 鍏充簬鏌愭潯鐩寸嚎瀵圭О鐨勪袱涓浘褰㈡槸鍏ㄧ瓑褰 43 瀹氱悊 2 濡傛灉...
绛旓細搴斾负鍚堟暟锛屽悎鏁版槸鎸囧湪澶т簬1鐨勬暣鏁颁腑闄や簡鑳借1鍜屾湰韬暣闄ゅ锛岃繕鑳借鍏朵粬鏁帮紙0闄ゅ锛夋暣闄ょ殑鏁般備笌涔嬬浉瀵圭殑鏄川鏁帮紝鑰1鏃笉灞炰簬璐ㄦ暟涔熶笉灞炰簬鍚堟暟銆傛渶灏忕殑鍚堟暟鏄4銆傚叾涓紝瀹屽叏鏁颁笌鐩镐翰鏁版槸浠ュ畠涓哄熀纭鐨勩傛ц川 鎵鏈夊ぇ浜2鐨勫伓鏁伴兘鏄悎鏁般傛墍鏈夊ぇ浜5鐨勫鏁颁腑锛屼釜浣嶄负5鐨勯兘鏄悎鏁般傞櫎0浠ュ锛屾墍鏈変釜浣嶄负0...
绛旓細33. 娌熶綅锛氭矡 34. 鍗佹矡浣嶏細鍗佹矡 35. 鐧炬矡浣嶏細鐧炬矡 36. 鍗冩矡浣嶏細鍗冩矡 37. 娑т綅锛氭锭 38. 鍗佹锭浣嶏細鍗佹锭 39. 鐧炬锭浣嶏細鐧炬锭 40. 鍗冩锭浣嶏細鍗冩锭 41. 姝ｄ綅锛氭 42. 鍗佹浣嶏細鍗佹 43. 鐧炬浣嶏細鐧炬 44. 鍗冩浣嶏細鍗冩 45. 杞戒綅锛氳浇 46. 鍗佽浇浣嶏細鍗佽浇 47. 鐧捐浇浣嶏細鐧捐浇...
绛旓細41,涓綅涓婃槸0,2,4,6,8鐨勬暟,閮借兘琚2鏁撮櫎,鍗宠兘鐢2杩涜绾﹀垎銆 涓綅涓婃槸0鎴栬5鐨勬暟,閮借兘琚5鏁撮櫎,鍗宠兘鐢5杩涜绾﹀垎銆傚湪绾﹀垎鏃跺簲娉ㄦ剰鍒╃敤銆 43,鍋舵暟鍜屽鏁:鑳借2鏁撮櫎鐨勬暟鍙仛鍋舵暟銆備笉鑳借2鏁撮櫎鐨勬暟鍙仛濂囨暟銆 44,璐ㄦ暟(绱犳暟):涓銆 2. 缁欐垜涓涓鏁板灏忕煡璇,200瀛楀乏鍙 闆剁殑鍘嗗彶 鏁板鍙插鎶0绉颁綔鈥...
绛旓細+(2n)=n(n+1)12+22+32+42+52+62+72+82+鈥+n2=n(n+1)(2n+1)/6 13+23+33+43+53+63+鈥3=n2(n+1)2/41*2+2*3+3*4+4*5+5*6+6*7+鈥+n(n+1)=n(n+1)(n+2)/3 鍦嗘煴渚ч潰绉疭=c*h=2pi*h鍦嗛敟渚ч潰绉疭=1/2*c*l=pi*r*l 鏌变綋浣撶Н鍏紡V=s*h鍦嗘煴浣揤=pi*r2h 鏈洖绛旂敱...
