l At which values of x does the graph of fx COS X intersect
     l. At which values of x does the graph of f(x) COS X intersect the x-axis? Select all that apply. (2 points 37 2T  
  
  Solution
1) f(x) = cosx
cosx = 0 ; x = pi/2
2) Graph given is for cotx
as cotx = 0 at x= pi/2
3) y = tanx
Domain exist at all real points except at asymtotes
So, (-inf, inf) x not equla to n*pi +pi/2
Range : (- inf , inf)
Option 3

