Nilai dari cos210°−cos30°+sin45°\cos210\degree-\cos30\degree+\sin45\degreecos210°−cos30°+sin45° adalah ....
123−2\frac{1}{2}\sqrt{3}-\sqrt{2}213−2
122−3\frac{1}{2}\sqrt{2}-\sqrt{3}212−3
12(2−3)\frac{1}{2}\left(\sqrt{2}-\sqrt{3}\right)21(2−3)
12(3−2)\frac{1}{2}\left(\sqrt{3}-\sqrt{2}\right)21(3−2)
3−2\sqrt{3}-\sqrt{2}3−2