45. sin 165° 46. tan 105° 47. cos 12 48. sin(-) 12 49. cos 80° cos 20° + sin 80° sin 20° 50. sin 70° cos 40° - cos 70° sin 40° 51. tan 52. sin 8.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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In Problems 45–52, find the exact value of each expression.

45. sin 165°
46. tan 105°
47. cos
12
48. sin(-)
12
49. cos 80° cos 20° + sin 80° sin 20°
50. sin 70° cos 40° - cos 70° sin 40°
51. tan
52. sin
8.
Transcribed Image Text:45. sin 165° 46. tan 105° 47. cos 12 48. sin(-) 12 49. cos 80° cos 20° + sin 80° sin 20° 50. sin 70° cos 40° - cos 70° sin 40° 51. tan 52. sin 8.
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