sin53¶È
sin53¶ÈµÈÓÚ¶àÉÙ¼ÆËã¹ý³Ì
sin53¶ÈµÈÓÚ0.7986£¬Æä¼ÆËã¹ý³ÌÈçÏ£ºÀûÓû¥Óà½Ç¹ØÏµ£ºsin53¡ã¿ÉÒÔת»¯Îªsin¡£¸ù¾ÝÈý½Çº¯ÊýÖеĻ¥Óà½Ç¹ØÏµ£¬sin = cos¦Á¡£Òò´Ë£¬sin53¡ã = cos37¡ã¡£²éÕÒ»ò¼ÆËãcos37¡ã...
sin53¶ÈµÈÓÚ¶àÉÙ
sin53¶ÈµÈÓÚ0.7986¡£sin53¶ÈµÄÊýÖµÊÇÒ»¸öÈý½Çº¯ÊýÖµ£¬±íʾÔÚÖ±½ÇÈý½ÇÐÎÖУ¬¶Ô±ßÓëб±ßµÄ±ÈÖµ£¬µ±½Ç¶ÈΪ53¶Èʱ£¬ÒªµÃµ½sin53¶ÈµÄ¾«È·ÊýÖµ£¬ÐèҪʹÓüÆËãÆ÷»ò²éÔÄÈý½Çº¯Êý±í...
sin53¡ãÊǶàÉÙ?»¹ÓÐcosºÍtan?
sin53¡ãÊǶàÉÙ?»¹ÓÐcosºÍtan?¾ÍÊÇ×îСµÄ¹´¹ÉÊý3,4,5×é³ÉµÄÖ±½ÇÈý½ÇÐÎÄǸö´óµãµÄÈñ½Ç, Сµã¶ùÈñ½ÇÊÇ37.ËùÒÔͨ³£Çé¿öÏÂÎïÀíÉÏÈ¡ÈçÏÂÖµ:...
Sin53¶ÈµÈÓÚ¶àÉÙ
0.79863 ÓõçÄÔÉϵļÆËãÆ÷,Ñ¡Ôñ¿ÆÑ§¼ÆËãÆ÷ ½Ç¶È Ïȵãsin ÔÚÊäÈë½Ç¶È ¼´¿É
Ò»Ð©ÌØÊâ½ÇµÄÈý½Çº¯ÊýÖµ37¶È½ÇºÍ53¶È½ÇµÄsin,cos,tan...
sin37¡ã=cos53¡ã=0.60181502315205cos37¡ã=sin53¡ã= 0.79863551004729tan37¡ã=cot53¡ã=0.75355405010279 cot37¡ã=tan53¡ã=1.3270448216204
ÎåÊ®Èý¶ÈµÄÈý½Çº¯ÊýÖµ
sin(¦Á+¦Â)=sin¦Ácos¦Â+cos¦Ásin¦Â¡£cos(¦Á+¦Â)=cos¦Ácos¦Â-sin¦Ásin¦Â¡£ËùÒÔ£¬¾¼ÆË㣬53¶ÈµÄֵΪ£ºsin53=4/5¡£cos53=3/5¡£tan53=4/3¡£cot53=3/4¡£
sin1ÊÇʲô?
Àí½â£¬ÎÒÒ²ÓйýÕâôÎÞÁĵÄʱºòÅ·À¹«Ê½´úÈëx=1ºÍx=-1£¬Ò»¼õ£¬ºÏ²¢Í¬ÀàÏϵÊý»¯ÎªÒ»sin1=£¨e^i-e^-i£©/2iÊÇsin1¡ã»¹ÊÇsin1£¬Ç°ÕßÊÇ...
...Æä·½ÏòÓëÊúÖ±·½Ïò³É53¶È½Ç(sin53¶È=0.8,cos53¶È=...
ÊÓÆµ½â´ðÌâĿһ¶¨ÒªÏêϸ½â´ð,°üÀ¨¹«Ê½ºÍ´úÊýÔµÓÉ¡£Ò»¶¨ÒªÏêϸ,°ÝÍРСÇòˮƽÅ׳ö,²»¼Æ¿ÕÆø×èÁ¦,ÂäµØÊ±ËÙ¶ÈΪ25m/s,Æä·½ÏòÓëÊúÖ±·½Ïò³É53¶È½Ç(sin53¶È=0.8,cos53¶È=0.6,sin37¶È=0.6...
tan53¶ÈµÈÓÚ¶àÉÙ
²é¿´¸ü¶àÓÅÖʽâÎö½â´ðÒ»¾Ù±¨tan53=sin53/cos53=0.8/0.6=4/3½âÎö¿´²»¶®?Ãâ·Ñ²é¿´Í¬ÀàÌâÊÓÆµ½âÎö²é¿´½â´ðÏàËÆÎÊÌâ tan35¡ã12'ÊǶàÉÙ,tan53¡ã24'ÄØtan53¶ÈµÈÓÚ¶àÉÙ?tan53¶È-tan23...