Question

I need the answer to this question

Answer 1

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:

Answer 2

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. . .