Question

Cos() =
O A. V
B.
173
2
OC.
OD.
-3

Answer 1

-√3/2

Explanation:

Given the expression:

Cos(7π/6)

Conver to degrees

= Cos(7(180)/6)

= cos 210

= -√3/2

Hence the value of cos(7π/6) is -√3/2