Question

what's value of cos(360+12)

Answer 1

http://lmgtfy.com/?q=cos(372+degrees)

or alternatively http://www.wolframalpha.com/input/?i=cos%28360+degrees+%2B+12+degrees%29

Answer 2

it is equal to co 12

Answer 3

cos(360) = 1, sin(360) = 0
use angle sum formula

cos(360+12) = cos(12)

Answer 4

cos(360 + x)
=cos(4*90 +12)
=cos12 answer
if the value of coefficient of 90 is odd then the cosine function changes to sine function.../