21 Июн

Рассчитано: сов (пи / 6), соз (2р / 3), COS (5P / 6), COS (7pi / 6) сов (4pi / 3), COS (5P / 3) сов (11pi / 6)

<p> вычислить:cos(пи/6), cos(2пи/3), cos(5пи/6), cos(7пи/6) cos(4пи/3), cos(5пи/3), сos(11пи/6)</p>
<ul>
<li><img src="https://tex.z-dn.net/?f=cos+%5Cfrac%7B+%5Cpi+%7D%7B6%7D+%3D+%5Cfrac%7B+%5Csqrt%7B3%7D+%7D%7B2%7D%0A%5C%5C%5C%0Acos+%5Cfrac%7B+2%5Cpi+%7D%7B3%7D+%3D+-%5Cfrac%7B1+%7D%7B2%7D%0A%5C%5C%5C%0Acos+%5Cfrac%7B5+%5Cpi+%7D%7B6%7D+%3D-+%5Cfrac%7B+%5Csqrt%7B3%7D+%7D%7B2%7D%0A%5C%5C%5C%0Acos+%5Cfrac%7B7+%5Cpi+%7D%7B6%7D+%3D-+%5Cfrac%7B+%5Csqrt%7B3%7D+%7D%7B2%7D%0A%5C%5C%5C%0Acos+%5Cfrac%7B+4%5Cpi+%7D%7B3%7D+%3D+-%5Cfrac%7B1+%7D%7B2%7D%0A%5C%5C%5C%0A+cos+%5Cfrac%7B+5%5Cpi+%7D%7B3%7D+%3D%5Cfrac%7B1+%7D%7B2%7D%0A%5C%5C%5C%0A+cos+%5Cfrac%7B11+%5Cpi+%7D%7B6%7D+%3D+%5Cfrac%7B+%5Csqrt%7B3%7D+%7D%7B2%7D" id="TexFormula1" onerror="texError(this)" title="cos frac{ pi }{6} = frac{ sqrt{3} }{2}#10;#10;cos frac{ 2pi }{3} = -frac{1 }{2}#10;#10;cos frac{5 pi }{6} =- frac{ sqrt{3} }{2}#10;#10;cos frac{7 pi }{6} =- frac{ sqrt{3} }{2}#10;#10;cos frac{ 4pi }{3} = -frac{1 }{2}#10;#10; cos frac{ 5pi }{3} =frac{1 }{2}#10;#10; cos frac{11 pi }{6} = frac{ sqrt{3} }{2}" alt="cos frac{ pi }{6} = frac{ sqrt{3} }{2}#10;#10;cos frac{ 2pi }{3} = -frac{1 }{2}#10;#10;cos frac{5 pi }{6} =- frac{ sqrt{3} }{2}#10;#10;cos frac{7 pi }{6} =- frac{ sqrt{3} }{2}#10;#10;cos frac{ 4pi }{3} = -frac{1 }{2}#10;#10; cos frac{ 5pi }{3} =frac{1 }{2}#10;#10; cos frac{11 pi }{6} = frac{ sqrt{3} }{2}" align="absmiddle" class="latex-formula"></li>
</ul>

Добавить комментарий

Ваш e-mail не будет опубликован. Обязательные поля помечены *