BITSAT 2011
- Exam
- BITSAT
- Year
- 2011
- Subject
- Mathematics
- Chapter
- Functions
BITSAT 2011 · Mathematics · Functions
If (f(x)=\ array l x ; when x is rational 1-x ; when x is...
If (f(x)=\left\{
x; when x is rational 1−x; when x is irrational \right.), then fof
(x) is given as
Options
- A1
- B(\mathrm{x})
- C(1+\mathrm{x})
- DNone of these
Correct answer
B. (\mathrm{x})
Step-by-step solution
(
fof(x)={f(x); when f(x) is rational 1−f(x); when f(x) is irrational ={x; when x is rational 1−(1−x); when x is irrational =x)
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