Question is :

Asked by spuneet23 | 16th Oct, 2010, 11:27: AM

Expert Answer:

Dear Student,
Ans is (A)
 
If you draw a graph between x and f(x)
f(x) = 0 when x =2, at higher values of x it will approach 1.
f(x) = -1 when x = 1;
f(x) = 1 when x = 1/2;
Now the function will fluctuate too rapidly as x decreases.
If you see values of f(x) for the following values you can judge the patter:
f(1/4) = 1
f(1/5) = -1
f(1/6) = 1
 
This explains the answer
 
Regards,

Answered by  | 19th Oct, 2010, 12:19: PM

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