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trigonometry · worked example

Solve cos(30°)

Method: زاوية خاصة. Verified step-by-step solution with our free AI math solver.

Problem

$\cos(30°)$

Step-by-step solution

في مثلث $30$ - $60$ - $90$ ، تكون الأضلاع بنسبة $1 : \sqrt{3} : 2$ .
جيب تمام $30°$ = المجاور/الوتر = $\frac{\sqrt{3}}{2}$ .

Answer

$\cos(30°) = \tfrac{\sqrt{3}}{2}$

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