write-the-given-trigonometric-expression-in-terms-of-cosine-cos-70-cos-10-sin-70

Question

Write the given trigonometric expression in terms of cosine.

cos 70° cos 10° + sin 70° sin 10°

Accepted Answer

cos 60°

Answer

cos 80°

Answer

cos 40°

Answer

cos 30°

Write the given trigonometric expression in terms of cosine.cos 70° cos 10° + sin 70° sin 10°