The answer to “Find the exact value of the expression.cos 37.5 cos 7.5” is broken down into a number of easy to follow steps, and 10 words. Since the solution to 59 from 7 chapter was answered, more than 749 students have viewed the full step-by-step answer. Precalculus: Mathematics for Calculus was written by and is associated to the ISBN: 9780840068071. This full solution covers the following key subjects: cos, Expression, exact, Find. This expansive textbook survival guide covers 13 chapters, and 1061 solutions. This textbook survival guide was created for the textbook: Precalculus: Mathematics for Calculus, edition: 6. The full step-by-step solution to problem: 59 from chapter: 7 was answered by , our top Calculus solution expert on 11/23/17, 05:03AM.