Засварлах: ᠺᠣᠮᠫ᠊ᠯᠧᠺᠰ ᠲᠣᠭ ᠠ (хэсэгчилэн)

= ᠬᠤᠪᠢᠶᠠᠬᠤ =
ᠺᠣᠮᠫ᠊ᠯᠧᠺᠰ ᠲᠣᠭᠠᠨ ‍ᠳᠤ ᠬᠤᠪᠢᠶᠠᠬᠤ ᠦᠢᠯᠡᠳᠦᠯ ᠭᠦᠢᠴᠡᠳᠬᠡᠬᠦ ᠳ᠋ᠦ ᠪᠡᠨ ᠬᠤᠪᠢᠶᠠᠭᠴᠢ ‍ᠢᠢᠨ ᠬᠣᠣᠰᠮᠠᠭ ᠲᠣᠭ᠎‍ᠠ᠋ ‍ᠢᠢ ᠠᠰᠢᠭᠯᠠᠳᠠᠭ᠃ ᠬᠤᠪᠢᠶᠠᠷᠢ ‍ᠢᠢᠨ ᠬᠣᠣᠰᠮᠠᠭ ‍ᠢᠢᠠᠷ ᠬᠦᠷᠲᠡᠪᠦᠷᠢ ᠪᠠ ᠬᠤᠪᠢᠶᠠᠷᠢ ‍ᠢᠢ ᠦᠷᠡᠵᠢᠭᠦᠯᠳᠡᠭ᠃ 
 

<math>\frac{a+bi}{c+di}=</math>        
<math>=\frac{\left(a+bi\right)\left(c-di\right)}{\left(c+di\right)\left(c-di\right)}=</math>        
<math>=\frac{ac+bd}{c^2+d^2}+\left(\frac{bc-ad}{c^2+d^2}\right)i.</math>


==ᠻᠸᠠᠲᠷᠠᠲ ᠵᠡᠷᠭᠡ==
ᠺᠣᠮᠫ᠊ᠯᠧᠺᠰ ᠲᠣᠭ᠎‍ᠠ᠋ ‍ᠢᠢ ᠻᠸᠠᠲᠷᠠᠲ<sup>quadrate</sup> ᠵᠡᠷᠭᠡ ᠳ᠋ᠦ ᠳᠡᠪᠰᠢᠭᠦᠯᠬᠦ ᠳ᠋ᠦ ᠪᠡᠨ ᠥᠪᠡᠷ ‍ᠢ ᠢᠨᠦ ᠥᠪᠡᠷ ᠲᠦ ᠢᠨᠦ ᠦᠷᠡᠵᠢᠭᠦᠯᠦᠨ᠎‍ᠡ᠋᠃<ref>Math is Fun. https://www.mathsisfun.com/algebra/complex-number-multiply.html ᠬᠠᠨᠳᠤᠭᠰᠠᠨ 2021/09 01</ref>


<math>(x+yi)^2=x^2-y^2 + 2xyi.</math>


==ᠻᠸᠠᠲᠷᠠᠲ ᠢᠵᠠᠭᠤᠷ==
ᠺᠣᠮᠫ᠊ᠯᠧᠺᠰ ᠲᠣᠭ᠎ᠠ <span style="writing-mode: horizontal-tb;"><i>a + bi</i></span> <span style="writing-mode: horizontal-tb;"><i>(b ≠ 0)</i></span> ‍ᠢᠢᠨ ᠻᠸᠠᠲᠷᠠᠲ ᠢᠵᠠᠭᠤᠷ ᠠᠨᠤ 
<math> \pm (\gamma + \delta i)</math> ᠪᠠᠢᠢᠬᠤ ᠠᠭᠠᠳ ᠡᠭᠦᠨ ᠳ᠋ᠦ᠄
<math>\gamma = \sqrt{\frac{a + \sqrt{a^2 + b^2}}{2}}</math> ᠪᠠ <math>\delta = (\sgn b)\sqrt{\frac{-a + \sqrt{a^2 + b^2}}{2}}</math> ᠪᠣᠯᠤᠮᠤᠢ᠃
<span style="writing-mode: horizontal-tb;"><i>sgn b</i></span> ᠭᠡᠭᠴᠢ ᠢᠨᠦ <math>\sgn b = \begin{cases} \ \ 1, & b > 0 \\ \ \ 0, & b = 0 \\ -1, & b < 0 \end{cases}</math> ᠭᠡᠵᠦ ᠲᠠᠢᠢᠯᠠᠭᠳᠠᠨ᠎ᠠ᠃ 

ᠡᠭᠦᠨ ‍ᠢ ᠪᠠᠲᠤᠯᠠᠬᠤ ‍ᠢᠢᠨ ᠲᠤᠬᠠᠢᠢᠲᠠ ᠳ᠋ᠤ <math> \pm (\gamma + \delta i)</math> ᠲᠣᠭ᠎ᠠ ‍ᠢᠢ ᠻᠸᠠᠲᠷᠠᠲ ᠵᠡᠷᠭᠡ ᠳ᠋ᠦ ᠳᠡᠪᠰᠢᠭᠦᠯᠵᠦ <span style="writing-mode: horizontal-tb;"><i>a + bi</i></span> ᠲᠣᠭ᠎ᠠ ‍ᠢᠢ ᠭᠠᠷᠭᠠᠵᠤ ᠢᠷᠡᠬᠦ ᠶᠣᠰᠤᠲᠠᠢ᠃