Question

cos 13pi/6

Answer 1

well it's simple calculation but do u refer to change 13pi/6 into degrees first?

Answer 2

cos 13pi/6=cos (12pi+pi)/6 = cos (2pi +pi/6) = cos pi/6 =1/2

Answer 3

well i was searching fo2 cos 13pi/6
and the answer is sqrt 3. anyway thxx

Answer 4

The answer is actually:
\[\frac{\sqrt{3}}{2}\]