GCSE

MATHEMATICS · Single correct · GCSE · Mathematics · Geometry and Measures · Geometry and Measures

Problem

Calculate (sin⁡30∘cos⁡60∘)2+(cos⁡30∘sin⁡60∘)2−2(sin⁡45∘cos⁡45∘)\left(\dfrac{\sin30^\circ}{\cos60^\circ}\right)^{2}+\left(\dfrac{\cos30^\circ}{\sin60^\circ}\right)^{2}-2\left(\dfrac{\sin45^\circ}{\cos45^\circ}\right). (a) 11 (b) 00 (c) 22 (d) 2−232-2\sqrt3

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