Question

Find the domain of the real valued function f(x) = ([x]2 – [x] - 2)-1/2. where [.] is the​

Answer 1

Answer:

f(x)=  2−x  +  1−x

​ Case I:- 2−x≥0

x≤2...

Case II:- 1+x≥0

x≥−1...

From equation (1)&(2), we get

−1≤x≤2

Hence the domain of f(x) is [−1,2].

Explanation:

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