Answer:
cos65°=0.4226182..=0.42
just grab your calculator,
i'm french, at college we have the casiofx92
to find cos65
press the key cos =cos(65=0.42261826...
type cos65 and you get the result
Explanation:
∴ cos 65° = 0.4226.
The value of cos 65 degrees in decimal is 0.422618261. . .. Cos 65 degrees can also be expressed using the equivalent of the given angle (65 degrees) in radians (1.13446 . . .)We know, using degree to radian conversion, θ in radians = θ in degrees × (pi/180°)⇒ 65 degrees = 65° × (π/180°) rad = 13π/36 or 1.1344 . . .∴ cos 65° = cos(1.1344) = 0.4226182. . .
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