Download the app

Questions  

The domain of the function f(x)=x1x2 is

a
−1,−12∪12,1
b
[-1, 1]
c
−∞,−12∪12,+∞
d
12,1

detailed solution

Correct option is D

For f (x) to be defined, we must havex−1−x2≥0 or x≥1−x2>0∴x2≥1−x2 or x2≥12 Also,  1−x2≥0 or x2≤1  Now,  x2≥12⇒x−12x+12≥0 ⇒x≤−12 or x≥12 Also, x2≤1⇒(x−1)(x+1)≤0⇒−1≤x≤1  Thus, x>0,x2≥12 and x2≤1⇒x∈12,1

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

 If f(x)=1(x+1)ex1(x4)(x+5)(x6), then the  domain of f(x) is 


phone icon
whats app icon