The expression arccos(3/5) has an infinite number of values.
A. True
B. False

Question

The expression arccos(3/5) has an infinite number of values.
  		A. 	True
  		B. 	False

anonymous · Answer

i will keep my mouth shut.

anonymous · Answer

if you want a guess, since they wrote "expression" and not "function" they think this is multivalued.  i will not argue because it is pointless.

anonymous · Answer

False right ?

hero · Answer

Has to be false

anonymous · Answer

arccos means the angles whose cosine is 3/5 - apologies if i'm saying something you all know. - so the angles is in first quadrant and another in 4 th quadrant . and there are many more as we continue to go around the circle

anonymous · Answer

- but then by definition, a function is either one to one or many to one and this is 1 to many - as Hero said it must be false. The fact that someone calls it an expression makes no difference.