tan60度是多少 tan30度 tan45度 tan60度 tan90度等于多...
tan60=\u591a\u5c11\uff1f
\u56fe
30\u5ea645\u5ea660\u5ea690\u5ea6\u7684\u4f59\u5f26\u3001\u6b63\u5207\u3001\u6b63\u5f26\u3001\u4f59\u5207\u6240\u5bf9\u5e94\u7684\u503c\u5982\u56fe\u6240\u793a\uff1a
\u6269\u5c55\u8d44\u6599\uff1a
\u4e00\u3001\u4e24\u89d2\u548c\u516c\u5f0f
cot(A+B)=(cotAcotB-1)/(cotB+cotA) cot(A-B)=(cotAcotB+1)/(cotB-cotA)
tan(A+B)=(tanA+tanB)/(1-tanAtanB) tan(A-B)=(tanA-tanB)/(1+tanAtanB)
cos(A+B)=cosAcosB-sinAsinB cos(A-B)=cosAcosB+sinAsinB
sin(A+B)=sinAcosB+cosAsinB sin(A-B)=sinAcosB-sinBcosA
\u4e8c\u3001\u79ef\u5316\u548c\u5dee\u516c\u5f0f
sin\u03b1sin\u03b2 = [cos(\u03b1-\u03b2)-cos(\u03b1+\u03b2)] /2
sin\u03b1cos\u03b2 = [sin(\u03b1+\u03b2)+sin(\u03b1-\u03b2)]/2
cos\u03b1sin\u03b2 = [sin(\u03b1+\u03b2)-sin(\u03b1-\u03b2)]/2
\u4e09\u3001\u5b9a\u4e49\u57df\u548c\u503c\u57df\uff1a
sin\uff08x\uff09\uff0ccos\uff08x\uff09\u7684\u5b9a\u4e49\u57df\u4e3aR\uff0c\u503c\u57df\u4e3a[-1,1]\u3002
tan\uff08x\uff09\u7684\u5b9a\u4e49\u57df\u4e3ax\u4e0d\u7b49\u4e8e\u03c0/2+k\u03c0\uff08k\u2208Z\uff09\uff0c\u503c\u57df\u4e3aR\u3002
cot\uff08x\uff09\u7684\u5b9a\u4e49\u57df\u4e3ax\u4e0d\u7b49\u4e8ek\u03c0\uff08k\u2208Z\uff09,\u503c\u57df\u4e3aR\u3002
y=a\u00b7sin\uff08x\uff09+b\u00b7cos\uff08x\uff09+c \u7684\u503c\u57df\u4e3a [ c-\u221a\uff08a²\uff1b+b²\uff1b\uff09 , c+\u221a\uff08a²\uff1b+b²\uff1b\uff09] \u5468\u671fT=2\u03c0/\u03c9\u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a
\u767e\u5ea6\u767e\u79d1-\u4e09\u89d2\u51fd\u6570
tan60度=√3≈1.732
答:tan60度是√3,约等于1.732.
tan60度=根号3。
是1.732
根号三 sb!
10
绛旓細tan60搴绛変簬鈭3銆俆an鏄鍒囩殑鎰忔濓紝瑙捨稿湪浠绘剰鐩磋涓夎褰腑锛屼笌胃鐩稿搴旂殑瀵硅竟涓庨偦杈圭殑姣斿煎彨鍋氳胃鐨勬鍒囧笺傝嫢灏單告斁鍦ㄧ洿瑙掑潗鏍囩郴涓嵆tan胃=y/x銆倀anA=瀵硅竟/閭昏竟銆傚湪鐩磋鍧愭爣绯讳腑鐩稿綋浜庣洿绾跨殑鏂滅巼k銆倀an60掳=瀵硅竟/閭昏竟=鈭3/1=鈭3銆
绛旓細tan60=鈭3 .濡傛灉妤间富缁忓父蹇樿涓夎鍑芥暟涓浜涚壒娈婂肩殑璇濓紝鍙互鏍规嵁浠栦滑鐨勫浘鍍忔潵璁板繂銆傦紙鍦ㄥ浘鍍忎笂琛ㄦ槑鑷彉閲忓搴旂殑鍑芥暟鍊硷紝杩欐牱鏈変簡鍑犱釜鐗规畩鐐癸紝灏卞鏄撶湅鍑轰簡锛
绛旓細瑙:渚濇嵁棰樻剰鏈,tan60搴=鈭3鈮1.732 绛:tan60搴︽槸鈭3,绾︾瓑浜1.732.
绛旓細tan60=鈭3 鎵浠ュ師寮=tan10tan20+鈭3tan10+鈭3tan20 =tan10tan20+鈭3(tan10+tan20)=tan10tan20+鈭3*(鈭3-鈭3tan10tan20)/3 =1
绛旓細tan60绛変簬鏍瑰彿3銆備笁瑙掑嚱鏁版槸鍩烘湰鍒濈瓑鍑芥暟涔嬩竴锛屾槸浠ヨ搴︿负鑷彉閲忥紝瑙掑害瀵瑰簲浠绘剰瑙掔粓杈逛笌鍗曚綅鍦嗕氦鐐瑰潗鏍囨垨鍏舵瘮鍊间负鍥犲彉閲忕殑鍑芥暟銆備篃鍙互绛変环鍦扮敤涓庡崟浣嶅渾鏈夊叧鐨勫悇绉嶇嚎娈电殑闀垮害鏉ュ畾涔夈備笁瑙掑嚱鏁扮殑浠嬬粛 涓夎鍑芥暟灏辨槸鎸囩洿瑙掍笁瑙掑舰涓换鎰忎袱鏉¤竟鐨勯暱搴︿箣姣旓紝濡傛寮﹀嚱鏁皊inx鏄杈逛笌鏂滆竟涔嬫瘮锛宼gx鏄杈逛笌閭昏竟涔...
绛旓細棰樹富鏄惁鎯宠闂tan60搴︽槸澶氬皯鈥滐紵鈭3銆倀an鏄鍒囩殑鎰忔濓紝瑙捨稿湪浠绘剰鐩磋涓夎褰腑锛屼笌胃鐩稿搴旂殑瀵硅竟涓庨偦杈圭殑姣斿煎彨鍋氳胃鐨勬鍒囧硷紝tan60掳鏄垰3銆傝嫢灏單告斁鍦ㄧ洿瑙掑潗鏍囩郴涓嵆tan胃=y/x锛宼anA=瀵硅竟/閭昏竟銆傚湪Rt鈻矨BC锛堢洿瑙掍笁瑙掑舰锛変腑锛屸垹C=90掳锛孉B鏄垹C鐨勫杈筩锛孊C鏄垹A鐨勫杈筧锛孉C鏄垹...
绛旓細tan(60掳)=鈭3鈮1.73銆備笁瑙掑嚱鏁板湪澶嶆暟涓湁杈冧负閲嶈鐨勫簲鐢紝鍦ㄧ墿鐞嗗涓紝涓夎鍑芥暟涔熸槸甯哥敤鐨勫伐鍏枫傚畠鏈夊叚绉嶅熀鏈嚱鏁帮細1銆佺鍙 sin cos tan cot sec csc 2銆佹寮﹀嚱鏁皊in锛圓锛=a/c 3銆佷綑寮﹀嚱鏁癱os锛圓锛=b/c 4銆佹鍒囧嚱鏁皌an锛圓锛=a/b 5銆佷綑鍒囧嚱鏁癱ot锛圓锛=b/a 6銆佸叾涓璦涓哄杈癸紝b涓洪偦...
绛旓細tan30掳=鈭3/3锛宼an45掳=1锛tan60掳=鈭歜ai3锛宼an90掳=∅涔熷氨鏄棤绌峰ぇ鎴栬呰鏄笉瀛樺湪锛宼an鏄鍒囷紝鏄笁瑙掑嚱鏁伴噷鐨勬鍒囧嚱鏁般傚湪Rt鈻矨BC涓紝濡傛灉閿愯A纭畾锛岄偅涔堣A鐨勫杈逛笌閭昏竟鐨勬瘮鍊奸殢涔嬬‘瀹氾紝杩欎釜姣斿彨鍋氳A鐨勬鍒囷紝璁颁綔tanA銆傝绠楀叕寮忎负tanA=鈭燗鐨勫杈/鈭燗鐨勯偦杈广傝繖閲屾墍璇寸殑tan30掳...
绛旓細tan30搴︺乼an45搴﹀拰tan60搴鍒嗗埆鏄垰3/3銆1鍜屸垰3銆倀an琛ㄧず姝ｅ垏鍑芥暟锛屽湪Rt鈻矨BC锛堢洿瑙掍笁瑙掑舰锛変腑锛屼护鈭燙=90掳锛孉B鏄垹C鐨勫杈筩锛孊C鏄垹A鐨勫杈筧锛孉C鏄垹B鐨勫杈筨锛屾鍒囧嚱鏁板氨鏄痶anB=b/a锛屽嵆tanB=AC/BC銆傚搴旂殑锛屼篃鏈変綑鍒囧嚱鏁帮紝浣欏垏鍑芥暟鍜屾鍒囧嚱鏁板间簰涓哄掓暟鍏崇郴锛屽锛歵an60掳=鈭3锛宑ot60...
绛旓細1銆乻in30掳=1/2銆乻in60掳=鈭3/2銆乻in90掳=1锛2銆乧os30掳=鈭3/2銆乧os60掳=1/2銆乧os90掳=0锛3銆乼an30掳=鈭3/3銆tan60掳=鈭3銆乼an90掳涓嶅瓨鍦紝4銆乧ot30掳=鈭3銆乧ot60掳=鈭3/3銆乧ot90掳=0銆傚父瑙佺殑涓夎鍑芥暟鍖呮嫭姝ｅ鸡鍑芥暟銆佷綑寮﹀嚱鏁板拰姝ｅ垏鍑芥暟銆傚湪鑸捣瀛︺佹祴缁樺銆佸伐绋嬪绛夊叾浠栧绉戜腑...
