Question
Question: Let f(x) = {x}, where {.} denotes the fractional part. For f(x), x = 5 is...
Let f(x) = {x}, where {.} denotes the fractional part. For
f(x), x = 5 is
A
A point of local maxima
B
A point of local minima
C
Neither a point of local minima nor maxima
D
) A stationary point
Answer
A point of local minima
Explanation
Solution
f(5) = 0, f(5 - 0) > 0 and f(5 + 0) > 0 thus x = 5 is the point of local minima for y = f(x).