数学中的cos0.5=cos60` 怎么把数字转换成角度吖？ 我玩两节课的计算器还是搞不出来，郁闷！ 用计算器怎么把cos换成角度
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\u5148\u6309cos\u952e \u518d\u6309\u6bd4\u503c
数字一般是弧度单位，与角度的关系：弧度*180/pi=角度。pi：圆周率绛旓細cos0.5绛変簬cos56掳33'52鍊笺傚弽鍑芥暟鏄痜=X^2銆俛3=3a+3d=8銆俛6=6a+15d=42銆=>d=26/9锛宎=-2/9銆俛8=20銆12R^2锛岃嚦灏1闂ㄥ叡鍚岃閫夋硶=鎬绘柟娉曟暟-浜屼汉鍏ㄤ笉閲嶈鏁=4C2*4C2-4C2*1=36-6=30銆備竴鑸潵璇 璁惧嚱鏁皔=f(x)(x鈭圓)鐨勫煎煙鏄疌锛岃嫢鎵惧緱鍒颁竴涓嚱鏁癵(y)鍦ㄦ瘡涓澶刧(y)閮界瓑浜巟...
绛旓細銆愬害銆慏eg锛埪帮級銆愬姬搴︺慠ad锛堬級銆愭搴︺慓ra锛堬級浣犵殑璁＄畻鍣ㄥ湪Gra鍗曚綅涓嬶紝涓嶆槸DEG锛埪帮級銆
绛旓細cos1=0.9998476951563913 cos2=0.9993908270190958 cos3=0.9986295347545738 cos4=0.9975640502598242 cos5=0.9961946980917455 cos6=0.9945218953682733 cos7=0.992546151641322 cos8=0.9902680687415704 cos9=0.9876883405951378 cos10=0.984807753012208 cos11=0.981627183447664 cos12=0.9781476007338057 cos13=0.9743700647852352 cos14=...
绛旓細5銆90搴﹀姬搴︽暟绛変簬浜屽垎涔嬒 銆6銆120搴﹀姬搴︽暟绛変簬涓夊垎涔嬩簩蟺 銆7銆165搴﹀姬搴︽暟绛変簬鍥涘垎涔嬩笁蟺 銆8銆150搴﹀姬搴︽暟绛変簬鍏鍒嗕箣浜斚 銆9銆180搴﹀姬搴︽暟绛変簬蟺 銆傘愮壒娈婅鐨勫害鏁板拰寮у害鏁般戝姬搴︽槸瑙掔殑搴﹂噺鍗曚綅 銆傚畠鏄敱鍥介檯鍗曚綅鍒跺鍑虹殑鍗曚綅 銆俿in0掳=0 cos0掳=1 sin30掳=0.5 cos30掳=鏍瑰彿3...
绛旓細涓夎鍑芥暟鏄鏁板涓甯歌鐨勪竴绫诲叧浜庤搴︾殑鍑芥暟銆備篃鍙互璇翠互瑙掑害涓鸿嚜鍙橀噺锛岃搴﹀搴斾换鎰忎袱杈圭殑姣斿间负鍥犲彉閲忕殑鍑芥暟鍙笁瑙掑嚱鏁帮紝涓夎鍑芥暟灏嗙洿瑙掍笁瑙掑舰鐨勫唴瑙掑拰瀹冪殑涓や釜杈归暱搴︾殑姣斿肩浉鍏宠仈锛屼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板湪鐮旂┒涓夎褰㈠拰鍦嗙瓑鍑犱綍褰㈢姸鐨勬ц川鏃舵湁閲嶈浣滅敤锛屼篃鏄爺绌跺懆鏈...
绛旓細涓夎鍑芥暟鍊煎涓嬶細涓夎鍑芥暟鏄鏁板涓灞炰簬鍒濈瓑鍑芥暟涓殑瓒呰秺鍑芥暟鐨勪竴绫诲嚱鏁般傚畠浠殑鏈川鏄换鎰忚鐨勯泦鍚堜笌涓涓瘮鍊肩殑闆嗗悎鐨勫彉閲忎箣闂寸殑鏄犲皠銆傞氬父鐨勪笁瑙掑嚱鏁版槸鍦ㄥ钩闈㈢洿瑙掑潗鏍囩郴涓畾涔夌殑锛屽叾瀹氫箟鍩熶负鏁翠釜瀹炴暟鍩熴傚彟涓绉嶅畾涔夋槸鍦ㄧ洿瑙掍笁瑙掑舰涓紝浣嗗苟涓嶅畬鍏ㄣ
绛旓細cos1=0.9998476951563913 cos2=0.9993908270190958cos3=0.9986295347545738 cos4=0.9975640502598242 cos5=0.9961946980917455cos6=0.9945218953682733 cos7=0.992546151641322 cos8=0.9902680687415704 cos9=0.9876883405951378 cos10=0.984807753012208 cos11=0.981627183447664cos12=0.9781476007338057 cos13=0....
绛旓細6銆乧os锛坅-b锛锛漜os锛坅锛塩os锛坆锛夛紜sin锛坅锛塻in锛坆锛7銆乧os锛坅锛夛紜cos锛坆锛夛紳2cos锛坅锛媌锛塩os锛坅-b锛夌浜岀 cos鐨勫懡鍚嶆簮浜COSPLAY杩欎釜璇嶏紝鏄滆鑹叉壆婕斺濄佸姩婕湡浜虹鈥濈殑鎰忔濄侰OSPLAY鏄嫳鏂嘋ostume Play鐨勭畝鍐欙紝鏃ユ枃銈炽偣銉椼儸銆傛寚鍒╃敤鏈嶈銆侀グ鍝併侀亾鍏蜂互鍙婂寲濡嗘潵鎵紨鍔ㄦ极浣滃搧銆佹父鎴忎腑浠ュ強鍙や唬...
绛旓細(1)鐗规畩瑙掍笁瑙掑嚱鏁板 sin0=0 sin30=0.5 sin45=0.7071 浜屽垎涔嬫牴鍙2 sin60=0.8660 浜屽垎涔嬫牴鍙3 sin90=1 cos0=1 cos30=0.866025404 浜屽垎涔嬫牴鍙3 cos45=0.707106781 浜屽垎涔嬫牴鍙2 cos60=0.5 cos90=0 tan0=0 tan30=0.577350269 涓夊垎涔嬫牴鍙3 tan45=1 tan60=1.732050808 鏍瑰彿3 tan90=鏃 cot0=鏃 cot30...
绛旓細cos1=0.9998476951563913 cos2=0.9993908270190958 cos3=0.9986295347545738 cos4=0.9975640502598242 cos5=0.9961946980917455 cos6=0.9945218953682733 cos7=0.992546151641322 cos8=0.9902680687415704 cos9=0.9876883405951378 cos10=0.984807753012208 cos11=0.981627183447664 cos12=0.9781476007338057 cos13=...
