sin53度多少 sin53度等于多少

Sin36\u5ea6\u503c\u662f\u591a\u5c11\uff1f

sin(36\u00b0) = 0.58778525229247
\u89e3 \u4f5c\u9ec4\u91d1\u25b3ABC\uff0c\u2220BAC=36 \u00b0\uff0c\u2220ABC=\u2220ACB=72 \u00b0.
\u4ee4BC=a,AB=AC=b\u3002
\u8fc7B\u4f5c\u2220ABC\u7684\u89d2\u5e73\u5206\u7ebfBD\uff0c\u4ea4AC\u4e8eD\u3002
\u56e0\u4e3a\u7b49\u8170\u25b3ABC\u223d\u7b49\u8170\u25b3BCD,
\u6240\u4ee5BC/CD=AB/BC\uff0c
\u6545CD=a^2/b\uff0c
\u7531\u6b64\u5f97:AD=b-a^2/b=(b^2-a^2)/b\u3002
\u56e0\u4e3aBC=BD\uff0c\u6545a=(b^2-a^2)/b\u3002
\u5373\u5f97:b^2=a^2+ab
\u4ee4b/a=t\uff0c\u5219t^2-t-1=0\uff0c
\u89e3\u65b9\u7a0b\u5f97:t=(\u221a5+1)/2.
\u6545b/a=(\u221a5+1)/2\uff0ca/b=(\u221a5-1)/2.
\u7531\u6b63\u5f26\u5b9a\u5f97:sin36 \u00b0/sin72 \u00b0=a/b=(\u221a5-1)/2.
\u6545\u5f97:cos36 \u00b0=(\u221a5+1)/4.
\u56e0\u800c\u5f97: sin36 \u00b0=[\u221a(10-2\u221a5)]/4.

sin 53\u00b0 \u5176\u5b9e\u5c31\u662f\u201c\u52fe\u4e09\u80a1\u56db\u7384\u4e94\u201d\u7684\u4e09\u89d2\u5f62.sin\u662f\u5bf9\u8fb9\u6bd4\u659c\u8fb9.
\u6240\u4ee5sin53\u00b0=4\uff1a5 \u7b49\u4e8e4/5

sin53°=0.8

0.79863551004729

tan53搴绛変簬澶氬皯
绛旓細tan53搴︾瓑浜sin53搴闄や互cos53搴︼紝鐢变笁瑙掑嚱鏁拌〃锛屽彲鐭in53搴︾瓑浜庝簲鍒嗕箣鍥涳紝cos53搴︾瓑浜庝簲鍒嗕箣涓夛紝鎵浠an53搴︾瓑浜庝簲鍒嗕箣鍥涢櫎浠ヤ簲鍒嗕箣涓夛紝鍗充笁鍒嗕箣鍥涖倀an澶氬皯搴﹁〃绀烘鍒囧嚱鏁帮紝姝ｅ垏鍑芥暟鏄洿瑙掍笁瑙掑舰涓紝瀵硅竟涓庨偦杈圭殑姣斿笺

sin53搴鍖栦负鍒嗘暟鏄澶氬皯
绛旓細sin53搴鍖栦负鍒嗘暟鏄澶氬皯= =sin 53掳 鍏跺疄灏辨槸鈥滃嬀涓夎偂鍥涚巹浜斺濈殑涓夎褰傘俿in鏄杈规瘮鏂滆竟銆傛墍浠in53掳=4:5 绛変簬4/5 濡傛湁鐤戦棶鍙拷闂,婊℃剰璇峰強鏃堕噰绾斥槄 鏈夐棶棰樻杩庡悜鎴戙愬畾鍚戞眰鍔┿戝摝 鎴戝皢鍦ㄧ涓鏃堕棿

sin53搴绛変簬澶氬皯?
绛旓細tan53=4/3銆備笁瑙掑嚱鏁颁竴鑸敤浜庤绠椾笁瑙掑舰涓湭鐭ラ暱搴︾殑杈瑰拰鏈煡鐨勮搴︼紝鍦ㄥ鑸佸伐绋嬪浠ュ強鐗╃悊瀛︽柟闈㈤兘鏈夊箍娉涚殑鐢ㄩ斻傚彟澶栵紝浠ヤ笁瑙掑嚱鏁颁负妯＄増锛屽彲浠ュ畾涔変竴绫荤浉浼肩殑鍑芥暟锛屽彨鍋氬弻鏇插嚱鏁般傚父瑙佺殑鍙屾洸鍑芥暟涔熻绉颁负鍙屾洸姝ｅ鸡鍑芥暟銆佸弻鏇蹭綑寮﹀嚱鏁扮瓑绛夈備笁瑙掑嚱鏁帮紙涔熷彨鍋氬渾鍑芥暟锛夋槸瑙掔殑鍑芥暟锛涘畠浠湪鐮旂┒涓夎褰㈠拰...

cos23搴in37搴+sin23搴sin53搴绛変簬澶氬皯?
绛旓細sin53搴=cos37搴︼紝鎵浠ュ師寮=cos23搴in37搴+sin23搴os37搴=sin锛23+37锛夊害=sin60搴=鈭3/2

0搴,37搴,53搴,90搴︾殑涓夎鍑芥暟鏄澶氬皯??
绛旓細sin0=0tan0=0cos0=0 sin37=o.601815023 tan37=0.75355405 cos37=0.79863551 sin53=0.79863551 tan53=1.327044822 cos53=0.601815023 sin90=1 tan90=閿欒 cos90=0

cos58搴in37搴+sin122搴sin53搴=?
绛旓細sin122=sin锛180-58锛=sin58 sin53=sin(90-37)=cos37 cos58搴in37搴+sin122搴sin53搴 =cos58sin37+sin58cos37 =sin(58+37)=sin95 =sin(90+5)=cos5

53搴37搴︾殑姝ｅ鸡浣欏鸡姝ｅ垏鏄澶氬皯鐗╃悊瑕佺敤?
绛旓細53搴 姝ｅ鸡0.8 浣欏鸡0.6 姝ｅ垏1.33 37搴 姝ｅ鸡0.6 浣欏鸡0.8 姝ｅ垏0.75

15搴︺37搴︺53搴鐨勪笁瑙掑嚱鏁版庝箞姹
绛旓細1.15搴︾敤30搴︾殑鍗婅鍏紡姹傘倀an15=2-鈭3鈮0.2679 sin15=[鈭(2-鈭3)]/2鈮0.2588 cos15=[鈭(2+鈭3)]/2鈮0.9659 2.37搴﹀拰53搴鐨勮瘽锛屽彲浠ヨ繎浼兼垚杈归暱涓3锛4锛5鐨勭洿瑙掍笁瑙掑舰锛岀劧鍚庣敤鍑犱綍鏂瑰紡姹傘倀an37=3/4=0.75 sin37=3/5=0.6 cos37=4/5=0.8 tan53=4/3鈮1.3333 sin53=...

cos58搴in37搴+sin122搴sin53搴=?O(鈭鈭)O璋㈣阿璇峰啓娓呰繃绋
绛旓細sin122=sin锛180-58锛=sin58 sin53=sin(90-37)=cos37 cos58搴in37搴+sin122搴sin53搴 =cos58sin37+sin58cos37 =sin(58+37)=sin95 =sin(90+5)=cos5

37銆53搴涓夎鍑芥暟鍊
绛旓細杩欎袱涓姝ｅソ鏄嬀涓夎偂鍥涘鸡浜旈偅涓笁瑙掑舰锛53搴姝ｅ鸡鏄0.8锛屼綑寮︽槸0.6锛屾鍒囨槸1.33銆37搴﹀垰濂戒笌涔嬬浉鍙.鍙傝冭祫鏂欙細濡傛灉鎮ㄧ殑鍥炵瓟鏄粠鍏朵粬鍦版柟寮曠敤锛岃琛ㄦ槑鍑哄

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