The range of the function f(x) = frac{sqrt{1 | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Given the function $f(x) = \frac{\sqrt{1 - x^2}}{1 + |x|}$.Since the domain of $\sqrt{1 - x^2}$ is $x \in [-1, 1]$,we can substitute $x = \sin 	h

Vedclass · Accepted Answer

$[0, 1]$

Vedclass · Answer

(A) Given the function $f(x) = \frac{\sqrt{1 - x^2}}{1 + |x|}$.Since the domain of $\sqrt{1 - x^2}$ is $x \in [-1, 1]$,we can substitute $x = \sin 	heta$ where $	heta \in [-\pi/2, \pi/2]$.Then $|x| = |\sin 	heta|$ and $\sqrt{1 - x^2} = \sqrt{1 - \sin^2 	heta} = \sqrt{\cos^2 	heta} = |\cos 	heta|$.So,$f(x) = \frac{|\cos 	heta|}{1 + |\sin 	heta|}$.Let $t = |\sin 	heta|$,where $t \in [0, 1]$. Then $|\cos 	heta| = \sqrt{1 - t^2}$.Thus,$y = \frac{\sqrt{1 - t^2}}{1 + t} = \frac{\sqrt{(1 - t)(1 + t)}}{1 + t} = \sqrt{\frac{1 - t}{1 + t}}$.As $t$ increases from $0$ to $1$,the expression $\frac{1 - t}{1 + t}$ decreases from $1$ to $0$.Therefore,the range of $y = \sqrt{\frac{1 - t}{1 + t}}$ is $[0, 1]$.

The range of the function $f(x) = \frac{\sqrt{1 - x^2}}{1 + |x|}$ is

Similar Questions

The range of the function $f(x) = \frac{1}{\sqrt{x-[x]}}$ is

If the domain of the greatest integer function is the set of real numbers,then the range will be the set of

The natural domain of the real valued function defined by $f(x) = \sqrt{x^2 - 1} + \sqrt{x^2 + 1}$ is

Given $f(x) = \frac{1}{2} - \tan^{-1}\left(\frac{\pi x}{2}\right)$ for $-1 < x < 1$ and $g(x) = \sqrt{3 + 4x - 4x^2}$. Find the domain of $(f + g)$.

The mid-point of the domain of the function $f(x) = \sqrt{4 - \sqrt{2x + 5}}$ for real $x$ is

Vedclass Test Series

Exam Paper Generator

Online Exam Module