[°øÁö] |
[°øÁö] Àΰ ¼ö°»ý Ä«Ä«¿ÀÅå ÁúÀÇÀÀ´ä ¹æ¹ý |
ȫâÀÇ |
2021-05-20 |
±ÛÁ¦¸ñ |
[°øÁö] Àΰ ¼ö°»ý Ä«Ä«¿ÀÅå ÁúÀÇÀÀ´ä ¹æ¹ý |
ÀÛ¼ºÀÚ |
ȫâÀÇ |
µî·ÏÀÏ |
2021-05-20 |
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¾È³çÇϼ¼¿ä, ȫâÀÇ ¼±»ý´ÔÀÔ´Ï´Ù.
Àΰ ¼ö°»ý ¿©·¯ºÐµé
Ä«Ä«¿ÀÅå ÁúÀÇÀÀ´ä ¹æ¹ýÀÔ´Ï´Ù.
* Áú¹® ¹æ¹ý
1. Ä«Ä«¿ÀÅå¿¡ ¼±»ý´Ô ¾ÆÀ̵ð Ãß°¡
ȫâÀÇ ¼±»ý´Ô Ä«Ä«¿ÀÅå ¾ÆÀ̵ð : hongdly
2. Áú¹®ÇÒ ¶§, º»ÀÎÀÌ ¼ö°ÇÏ°í ÀÖ´Â °ÀÇ¸í ±âÀç / ¸î °ÀÎÁö ±âÀçÇØÁֽñ⠹ٶø´Ï´Ù.
°¨»çÇÕ´Ï´Ù. |
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2848 |
°î·ü °ø½Ä |
viminsun** |
2019-12-15 |
±ÛÁ¦¸ñ |
°î·ü °ø½Ä |
ÀÛ¼ºÀÚ |
viminsun** |
µî·ÏÀÏ |
2019-12-15 |
|
°î·ü °ø½ÄÀ» Àû¿ëÇÔ¿¡ ÀÖ¾î¼ Çò°¥¸®´Â ºÎºÐÀÌ ÀÖ¾î µÎ°¡Áö Áú¹®µå¸³´Ï´Ù.
¸Å°³ °î¼±ÀÇ °î·üÀ» ±¸ÇÒ ¶§,
1.°î·ü = ||T'(t)|| / || r'(t) || ÀÌ °ø½Ä°ú ||X'(t) x X''(t)|| / ||X'(t)||^3 °ø½ÄÀº
µÑ´Ù ±¸ºÐ ¾øÀÌ »ç¿ë °¡´ÉÇÑ°¡¿ä?? ¸Å°³ °î¼± °î·ü ±¸ÇÏ´Â ¹®Á¦¿¡¼ ¾î¶² °æ¿ì¿¡´Â ¿ÞÂÊ °ø½ÄÀ» ½á¼ ±¸ÇÏ°í ¾î¶² °æ¿ì¿¡´Â ¿À¸¥ÂÊ °ø½ÄÀ» ½á¼ ±¸Çؼ Çò°¥¸³´Ï´Ù!
2. Æò¸éÀÇ ¸Å°³°î¼±ÀÇ °î·üÀ» ±¸ÇÒ ¶§¿¡´Â
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´äº¯ÀÔ´Ï´Ù. |
haeun8** |
2019-12-17 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-17 |
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1. ³×, µÎ °ø½Ä ´Ù »ç¿ë °¡´ÉÇÕ´Ï´Ù.
2. Áú¹®ÀÌ À߷ȳ׿ä. |
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2847 |
4° 54ºÐ 32ÃÊ »óÀ§20ÆÛ¼¾Æ®¹®Á¦ |
chpark** |
2019-12-15 |
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4° 54ºÐ 32ÃÊ »óÀ§20ÆÛ¼¾Æ®¹®Á¦ |
ÀÛ¼ºÀÚ |
chpark** |
µî·ÏÀÏ |
2019-12-15 |
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º¸±âÁß 4¹ø Çؼ³À» ÇϽôÂÁß¿¡ 3Â÷¿øÀ̶ó°í Çϼ̴µ¥ ¾îµð¼ ÇØ´ç º¤ÅÍ°¡ 3Â÷¿øÀÎÁö ¾Ë¼öÀִ°ÇÁö ±Ã±ÝÇÕ´Ï´Ù.
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haeun8** |
2019-12-17 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-17 |
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2Â÷ ÀÌÇÏÀÇ ´ÙÇ×½ÄÀÇ ±âº»±âÀú´Â {1, x, x^2} À̹ǷΠ3Â÷¿øÀÔ´Ï´Ù. |
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2846 |
436p 3¹ø |
thdtkddlr0** |
2019-12-14 |
±ÛÁ¦¸ñ |
436p 3¹ø |
ÀÛ¼ºÀÚ |
thdtkddlr0** |
µî·ÏÀÏ |
2019-12-14 |
|
r^2 dzdrd(theta)·Î Ç®ÀÌ¿¡ ³ª¿ÍÀִµ¥ rdzdrd(theta)¿¡¼ rÀÌ ¶Ç Çϳª°¡ ¾î¶»°Ô »ý±ä°ÇÁö ¸ð¸£°Ú½À´Ï´Ù.
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haeun8** |
2019-12-17 |
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haeun8** |
µî·ÏÀÏ |
2019-12-17 |
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f(r,theta, z) =r ÀÇ r ÀÔ´Ï´Ù. |
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2845 |
P408 27¹ø |
bsh09** |
2019-12-14 |
±ÛÁ¦¸ñ |
P408 27¹ø |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-14 |
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Çؼ³¿¡ ¹Ù²ï ÀûºÐÀÇ ¹üÀ§¿¡¼ yÀÇ ¹üÀ§°¡ x^2ºÎÅÍ 1-x±îÁö·Î µÇ¾îÀִµ¥ ¿Ö 1-x±îÁöÀÎÁö ¸ð¸£°Ú½À´Ï´Ù. |
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2019-12-17 |
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haeun8** |
µî·ÏÀÏ |
2019-12-17 |
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ÃßÈÄ ³ª¿Â Ã¥Àº ¿ÀŸ¸¦ Á¤Á¤Çߴµ¥, ±× Ã¥Àº Á¤Á¤µÇÁö ¾Ê¾Ò³ª º¾´Ï´Ù.
1-x °¡ ¾Æ´Ñ 1-z ·Î ¹Ù²ò´Ï´Ù. |
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2844 |
P364 ´ëÇ¥ ±âÃâÀ¯Çü 1 |
bsh09** |
2019-12-14 |
±ÛÁ¦¸ñ |
P364 ´ëÇ¥ ±âÃâÀ¯Çü 1 |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-14 |
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Çؼ³¿¡ ±âÀçµÈ xÃà ȸÀüüÀÇ ºÎÇÇ ±¸ÇÏ´Â °ø½ÄÀÌ ¿Ö ¾²¿´´ÂÁö ±Ã±ÝÇÕ´Ï´Ù. ±¸Ã¼ÀûÀ¸·Î ¹®Á¦¿¡ ³ª¿Í ÀÖ´Â ºÎÇÇ¿Í, xÃàȸÀüüÀÇ ºÎÇÇ°¡ ¿Ö °°Àº°Ç°¡¿ä?? |
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haeun8** |
2019-12-14 |
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haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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¹ÝÁö¸§ÀÌ 5ÀÎ ¿ø¿¡¼ 0ºÎÅÍ 3±îÁöÀÇ ¿µ¿ªÀ» xÃà ȸÀü½ÃÅ°¸é
¹®Á¦¿¡¼ ¿øÇÏ´Â ¿µ¿ªÀÇ ºÎÇÇ°¡ ³ª¿É´Ï´Ù.
±×·Áº¸°í »ý°¢ÇØ º¸¼¼¿ä. |
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2843 |
430p À¯ÇüÇнÀ2, ÇÔ¼öÀÇ Æò±Õ°ª |
thdtkddlr0** |
2019-12-14 |
±ÛÁ¦¸ñ |
430p À¯ÇüÇнÀ2, ÇÔ¼öÀÇ Æò±Õ°ª |
ÀÛ¼ºÀÚ |
thdtkddlr0** |
µî·ÏÀÏ |
2019-12-14 |
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ÁØ ½ÄÀ» ÁÖ¸éÁÂÇ¥°è·Î º¯°æÇÒ ¼ö °¡ ¾ø½À´Ï´Ù.. µµ¿ÍÁÖ¼¼¿ä.. ¾ÕÀü¿¡ °°Àº Áú¹®Çß´ø »ç¶÷ÀÌ ÀÖ´øµ¥ µ¿ÀÏÇÏ°Ô Ç®¾î¼ Àª¸®½º Á¤¸®·Î °ªÀÌ 0ÀÌ ³ª¿É´Ï´Ù. ¿Ö À߸øµÈ°Ç°¡¿ä?? ¹Ù·Ò ´ÙÀ½ ÆÄÆ® ÇÔ¼öÀÇ Æò±Õ°ª¿¡¼´Â, yc,zc¸¦ ¼³Á¤ÇÏ´Â ¹æ¹ýÀÌ ¾Ö¸ÅÇؼ Àß ¸ð¸£°Ú½À´Ï´Ù... |
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haeun8** |
2019-12-14 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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-r<x<r ¿¡¼ rÀº »ó¼öÀÔ´Ï´Ù. Áï, x=rcos(theta) ¿¡¼ÀÇ r°ú ´Ù¸¥ °ÍÀ̹ǷÎ
ÁÖ¸éÁÂÇ¥°è¸¦ ÀÌ¿ëÇÏ°í ½Í´Ù¸é -r<x<r À» -a<x<a ó·³ ´Ù¸¥ ¹®ÀÚ·Î »ý°¢Çϼ¼¿ä.
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ºÎÇÇÀÇ z(³ôÀÌ) ÀÇ ÁßÁ¡À» »ý°¢Çϸé z_2=4-x^2 -y^2 °ú z_1=0 »çÀÌÀÇ ÁßÁ¡À¸·Î (z_2+z_1)/2 °¡ µË´Ï´Ù. |
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2842 |
P230 11¹ø |
bsh09** |
2019-12-13 |
±ÛÁ¦¸ñ |
P230 11¹ø |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-13 |
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Çؼ³¿¡ (aw/ay)x=(aw/ax)(ax/ay)+... ¶ó°í µÇ¾îÀִµ¥ (aw/ay)x´Â aw/ay¸¦ x¿¡ ´ëÇؼ Æí¹ÌºÐ ÇÑ°ÅÁÒ?? ±Ùµ¥ ±×·¯¸é Àú ½ÄÀÌ ¸ÂÁö ¾ÊÀº °Í °°½À´Ï´Ù. Àú ±âÈ£°¡ Æí¹ÌºÐÀÎÁö¶û Æí¹ÌºÐÀÎ°Å¸é ¿Ö Àú½ÄÀÌ ¸Â´ÂÁö ±Ã±ÝÇմϴ٤ФР|
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2019-12-14 |
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haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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¿·¿¡ ±âÈ£ÀÇ Ç¥½Ã°¡ ¹«¾ùÀÎÁö ½áÀÖ½À´Ï´Ù.
(aw/ay)x ´Â x ¸¦ »ó¼öÃë±ÞÇÏ°í w¸¦ y·Î Æí¹ÌºÐ ÇÏ´Â °ÍÀÔ´Ï´Ù. |
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2841 |
P214 À¯ÇüÇнÀ 3 |
bsh09** |
2019-12-12 |
±ÛÁ¦¸ñ |
P214 À¯ÇüÇнÀ 3 |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-12 |
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x¸¦ s¿¡´ëÇÏ¿© Æí¹ÌºÐÇÑ °ªÀ» ±¸ÇÏ´Â °ÍÀε¥ Çؼ³¿¡ ½ÄÀº ¿Ö ¹ÌºÐÇÑ °ªÀ¸·Î ´äÀÌ ³ª¿À´Â °Ç°¡¿ä?? Áï ax/as °¡ ¾Æ´Ï¶ó dx/ds°¡ ´äÀÌ µÇ´Â ÀÌÀ¯°¡ ±Ã±ÝÇÕ´Ï´Ù. µÑÀÌ °°Àº °Ç°¡¿ä? |
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haeun8** |
2019-12-14 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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Àü¹ÌºÐÀ» ÀÌ¿ëÇÏ¿© d ÀÇ Ç¥ÇöÀÌ ³ª¿ÔÀ» »Ó x¸¦ s·Î Æí¹ÌºÐÇÑ °ÍÀº µ¿ÀÏÇÕ´Ï´Ù.
µû¶ó¼ ¾çº¯À» ds ·Î ³ª´ ¶§ s·Î Æí¹ÌºÐÀ̸é t ¸¦ »ó¼öÃë±Þ ÇϹǷΠdt/ds ´Â 0 ÀÌ µÈ °ÍÀÔ´Ï´Ù. |
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2840 |
P204 26¹ø |
bsh09** |
2019-12-12 |
±ÛÁ¦¸ñ |
P204 26¹ø |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-12 |
|
Çؼ³¿¡ 5¹ø° ÁÙ¿¡¼ºÎÅÍ Á¡(2,5,ln10)¿¡¼ Á¢¼±ÀÇ ±â¿ï±â´Â u¹æÇâÀ¸·ÎÀÇ ¹æÇ⠹̺аè¼ö¶ó°í µÇ¾îÀִµ¥ ±× ÀÌÀ¯°¡ ±Ã±ÝÇÕ´Ï´Ù. |
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2019-12-14 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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°î¸éÀÌ Á¡(2, 5, ln10) ¿¡¼ Æò¸é¿¡ ÀÇÇØ À߸®´Â ¹æÇâÀ¸·ÎÀÇ Á¢¼±ÀÇ ±â¿ï±âÀ̹ǷÎ
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2839 |
407p 23¹ø |
thdtkddlr0** |
2019-12-12 |
±ÛÁ¦¸ñ |
407p 23¹ø |
ÀÛ¼ºÀÚ |
thdtkddlr0** |
µî·ÏÀÏ |
2019-12-12 |
|
Ç®ÀÌ¿¡¼ z = 3-x^2-y^2ÀÇ ÇüÅ´ À§·Î º¼·ÏÇÑ ÇüÅÂÀε¥ ¿øÀ¸·Î ±×·ÁÁ®Àִ°Š°°½À´Ï´Ù.. ´äÀÌ ¸Â³ª¿ä? |
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2019-12-12 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-12 |
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ÇÏÁö¸¸ ¹®Á¦¸¦ Ǫ´Âµ¥ Å« ¿µÇâÀº ¾øÀ» µí ÇÏ¸ç ´äÀº ¸Â½À´Ï´Ù. |
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2838 |
405p 15¹ø |
thdtkddlr0** |
2019-12-11 |
±ÛÁ¦¸ñ |
405p 15¹ø |
ÀÛ¼ºÀÚ |
thdtkddlr0** |
µî·ÏÀÏ |
2019-12-11 |
|
Ç®ÀÌ¿¡¼ x+y=1Àε¥ -1·Î µÇ¾îÀÖ¾î¿ä.. ÀÌ ½ÄÀÌ µµÃâµÇ´Âµ¥ ¸Â³ª¿ä? |
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2019-12-12 |
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haeun8** |
µî·ÏÀÏ |
2019-12-12 |
|
³×, ±× ½Äµµ ¸Â½À´Ï´Ù. |
|
2837 |
P440 3¹ø |
bsh09** |
2019-12-11 |
±ÛÁ¦¸ñ |
P440 3¹ø |
ÀÛ¼ºÀÚ |
bsh09** |
µî·ÏÀÏ |
2019-12-11 |
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Çؼ³¿¡¼ dy/dtÀÇ ºÎÈ£°¡ ¿Ö -ÀÎÁö ¾Ë°í½Í½À´Ï´Ù. |
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2019-12-14 |
±ÛÁ¦¸ñ |
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haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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¾Æ·¡ÂÊÀ¸·Î ¿òÁ÷À̹ǷΠ- ¸¦ »ç¿ëÇÕ´Ï´Ù. |
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2836 |
Ç×°ø´ëÇб³ 17³âµµ 12¹ø ¹®Á¦ |
mousejunj** |
2019-12-11 |
±ÛÁ¦¸ñ |
Ç×°ø´ëÇб³ 17³âµµ 12¹ø ¹®Á¦ |
ÀÛ¼ºÀÚ |
mousejunj** |
µî·ÏÀÏ |
2019-12-11 |
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Ç×°ø´ë 17³âµµ 12¹ø ¹®Á¦¿¡¼ b°æ·Î¿¡¼ (0,0) -> (3,0)¸»°í (3,0) -> (2,1)·Î °¡´Â °æ¿ì¿¡¼¿ä y=t·Î °¡Á¤ÇѰͱîÁö´Â ¾Ë°Ú´Âµ¥ ¿Ö x=3-t°¡ µÇ´Â°Ç°¡¿ä?? |
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2019-12-14 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
haeun8** |
µî·ÏÀÏ |
2019-12-14 |
|
µÎ Á¡À» Áö³ª´Â Á÷¼±ÀÇ ¹æÁ¤½ÄÀÌ y=3-x À̹ǷΠy=t ·Î ³õÀ¸¸é x=3-t ÀÔ´Ï´Ù. |
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2835 |
¹ÌÀûºÐÇÐ2 404p 11¹ø |
ktjinyou** |
2019-12-10 |
±ÛÁ¦¸ñ |
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ÀÛ¼ºÀÚ |
ktjinyou** |
µî·ÏÀÏ |
2019-12-10 |
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2019-12-12 |
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µî·ÏÀÏ |
2019-12-12 |
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2834 |
2019 ¼°´ë ±âÃâ |
viminsun** |
2019-12-10 |
±ÛÁ¦¸ñ |
2019 ¼°´ë ±âÃâ |
ÀÛ¼ºÀÚ |
viminsun** |
µî·ÏÀÏ |
2019-12-10 |
|
±âÃâÀº ÀΰÀÌ ¾ø¾î¼ ¿©±â¿¡´Ù°¡ Áú¹® ¿Ã¸³´Ï´Ù¤Ð¤Ð 2019 ¼°´ë ±âÃâ¹®Á¦ Áß 7¹ø¿¡ ¤¤º¸±â¿¡¼// 0ºÎÅÍ 1±îÁöÀÇ ÀûºÐ ±¸°£¿¡¼´Â ½ÎÀÎ (¥ðx ) ¸¦ ¥ðx ·Î ¹Ù²ã¼ ¼ö·Å,¹ß»ê ÆÇÁ¤À» ÇÒ ¼ö ÀÖ´Ù°í ¾Ë°íÀÖ½À´Ï´Ù. ±×·¡¼ Àú´Â ÀÎÅױ׶ö 0ºÎÅÍ 1±¸°£¿¡¼ ¥ðx / 1 - x dx > ÀÎÅױ׶ö 0ºÎÅÍ 1±¸°£¿¡¼ x/1 - x dx ÀÌ°í, ÀÎÅױ׶ö 0ºÎÅÍ 1±¸°£¿¡¼ x / 1-x dx °¡ ¹ß»êÇϹǷΠ¤¤ º¸±â¸¦ ¹ß»êÇÑ´Ù°í ÆÇÁ¤Çߴµ¥ ÀÌ·¸°Ô Ç®¸é ¿Ö ¾ÈµÇ³ª¿ä??
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2019-12-14 |
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haeun8** |
µî·ÏÀÏ |
2019-12-14 |
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0<x<1 ¿¡¼ sinx->x ·Î ¾²´Â °ÍÀº 0±Ù¹æÀÏ ¶§ Â÷ÀÌ°¡ Å©Áö ¾Ê¾Æ »ç¿ëÇÏ´Â °ÍÀε¥,
±¸°£ÀÌ 0<x<1 ´õ¶óµµ sin(¥ðx) ¿Í ¥ðx ÀÇ Â÷ÀÌ´Â Å®´Ï´Ù.
µû¶ó¼ ¹Ù²Ù¾î ÆÇÁ¤Çϱ⠾î·Æ½À´Ï´Ù.
ÇöÀç ±âÃâÀΰÀº µ¶ÇлýÇÁ·Î±×·¥ ¶Ç´Â Çö°À» ¼ö°ÇÏ´Â Çлý¿¡°Ô ¹«·á·Î Á¦°øµÇ°í ÀÖÀ¸¸ç ÆǸÅÇÏÁö´Â ¾Ê½À´Ï´Ù.
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