mojio22
mojio22
07.04.2020 • 
Mathematics

Write the expressions the cosire of an angle, knowing that the expression is the right side of the formula fon
cos (a - b) with particular values for a and B.
1) cos (175°) cos (55") + sin (175°) sin (559)
A) COS (210°)
B) cos (220°)
C) cos (190)
D) cos (120°)

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