. What is the value of cos 105 degree
Best Answer
The value of cos 105 degree is -0.258.
Now, using conversion of degree into radian
θ in radians = θ in degrees × (π/180°)
105 degrees = 105° × (π/180°) rad = 7π/12 or 1.8325
cos 105° = cos (1.8325) = -(√6-√2)/4 or -0.258
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