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243. Poiščite kot \( \alpha \), za katerega velja \( 0 \leq \alpha \leq 180^{\circ} \) in \( \sin \alpha=\frac{1}{2} \).

Ask by Summers Barnett. in Slovenia
Feb 03,2025

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The angles \( \alpha \) that satisfy \( \sin \alpha = \frac{1}{2} \) within \( 0^\circ \leq \alpha \leq 180^\circ \) are \( 30^\circ \) and \( 150^\circ \).

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Mind Expander

Ko iščemo kot \( \alpha \), pri katerem velja \( \sin \alpha = \frac{1}{2} \), se moramo spomniti, da sinusi dosežejo vrednost \( \frac{1}{2} \) pri kotih \( 30^{\circ} \) in \( 150^{\circ} \) v intervalu od \( 0^{\circ} \) do \( 180^{\circ} \). Tako imamo dve rešitvi za naš problem: \( \alpha = 30^{\circ} \) in \( \alpha = 150^{\circ} \). Da bi si to zapomnili še lažje, si lahko zamislite pravi trikotnik, kjer je nasprotna stran dolga 1, hipotenuza pa 2. Ko prepoznavamo te posebne vrednosti, postanejo mnoge trigonometrične enačbe in funkcije veliko bolj dostopne in zabavne za reševanje!

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