Given that ( 35^ = 0.574 )

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Given that sin⁡35∘=0.574\sin 35^\circ = 0.574, what is the value of cos⁡55∘\cos 55^\circ correct to three decimal places? (a) 0.8190.819 (b) 0.7070.707 (c) 0.5740.574 (d) 0.4260.426

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