SOLUTION: which of the ff has no solutions? secx + 2 = 0 cosx - 3 = 0 sinx(sinx + 1) = 0 3tanx - 1 = 0

Algebra ->  Trigonometry-basics -> SOLUTION: which of the ff has no solutions? secx + 2 = 0 cosx - 3 = 0 sinx(sinx + 1) = 0 3tanx - 1 = 0      Log On


   

Question 1125854: which of the ff has no solutions?
secx + 2 = 0
cosx - 3 = 0
sinx(sinx + 1) = 0
3tanx - 1 = 0
Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.
Second line equation


    cos(x) - 3 = 0


has no solution, because  cos(x) is always between +1 and -1.


All students know it.