Find the value of .

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

Find the value of 5(cos⁡34∘cos⁡56∘−sin⁡34∘sin⁡56∘)5\bigl(\cos34^{\circ}\cos56^{\circ}-\sin34^{\circ}\sin56^{\circ}\bigr). (a) 55 (b) 2.52.5 (c) 00 (d) 0.930.93

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