When two straight lines or rays intersect at a shared endpoint, an angle is generated. The exact value of cosine(7π/8) is 0.912939.
When two straight lines or rays intersect at a shared endpoint, an angle is generated. An angle's vertex is the common point of contact. Angle is derived from the Latin word angulus, which means "corner."
The given angle can be written in degree form as,
(7π/8) radian = (7π/8) × (180/π) = 157.5°
The exact value of cosine(7π/8) can be written as,
Cosine (7π/8) = Cosine(157.5°) = 0.912939
Hence, The exact value of cosine(7π/8) is 0.912939.
Learn more about Angle:
https://brainly.com/question/7116550
#SPJ1
