what is the trigometric function of cos pi?
a)0
b)-1
c)1
d)undefined
Paste this in your Google search window:
cos(PI)
To find the value of the trigonometric function cos(pi), you can input "cos(PI)" into the Google search window.
If you do that, Google will return the numerical value of cos(pi) as -1.
So, the answer is b) -1.