Question 56
HardOriginal questionSolve .
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
A fraction is positive when the top and bottom have the same sign. The signs change at and .
Both positive: . Both negative: . Neither end point is allowed: at 2 the fraction is 0, at it is undefined.
Worth noting
Including divides by zero, and including 2 gives 0, which is not .
- Concept
- A rational inequation
- Typical timeTypical
- 120 s
- Your timeYours
- —
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