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Matura 2024. ljeto - A

10.
Ako je sin⁡α=34\sin \alpha=\frac{3}{4}$\sin \alpha=\frac{3}{4}$, α∈⟨π2,π⟩\alpha \in \left\langle \frac{\pi}{2}, \pi \right\rangle$\alpha \in \left\langle \frac{\pi}{2}, \pi \right\rangle$, koliko iznosi cos⁡α\cos \alpha$\cos \alpha$?
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