MCQ
Domain of the function $ \text{ f}(\text{x}) =\sqrt{( 2 -\text{ 2x} - \text{x })} $ is:
  • A
    $-\sqrt{3≤x≤}$+$\sqrt{3}$
  • -1-$\sqrt{3≤x≤-1}$
  • C
    $+\sqrt{3}$
  • D
    $-2 ≤ x ≤ 2$

Answer

Correct option: B.
-1-$\sqrt{3≤x≤-1}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

$\alpha _r$ and $\beta _r (\alpha _r < \beta _r)$ are the roots of $x^2 -r^2(r + 1)x + r^5 = 0$. The value of $\sum\limits_{r - 1}^n {(3{\alpha _r} + \,2{\beta _r})}$ is 
The values of $k$ for which the quadratic equation $kx^2 + 1 = kx + 3x - 11x^2$ has real and equal roots are:
If ${z_1} = 1 + 2i$ and ${z_2} = 3 + 5i$, and then $\operatorname{Re} \left( {\frac{{{{\bar z}_2}{z_1}}}{{{z_2}}}} \right)$ is equal to
The slope of the tangent of the circle $(x-6)^2 + y^2 = 2$ , which is passing through the focus of the parabola $y^2 = 16\ x$ is
Let $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1(b < a)$, be a ellipse with major axis $A B$ and minor axis $C D$. Let $F_1$ and $F_2$ be its two foci, with $A, F_1, F_2, B$ in that order on the segment $A B$. Suppose $\angle F_1 C B=90^{\circ}$. The eccentricity of the ellipse is
Equation of a line through $(7, 4)$ and touching the circle, $x^2 + y^2 - 6x + 4y - 3 = 0$ is :
The vertices of a triangle are $(2, 1)$, $(5, 2)$ and $(4, 4)$. The lengths of the perpendicular from these vertices on the opposite sides are
Let $C$ be the circle in the complex plane with centre $z_0=\frac{1}{2}(1+3 i)$ and radius $r=1$. Let $z_1=1+$ $i$ and the complex number $z_2$ be outside the circle $C$ such that $\left|z_1-z_0\right|\left|z_2-z_0\right|=1$. If $z_0, z_1$ and $z_2$ are collinear, then the smaller value of $\left|z_2\right|^2$ is equal to $.............$. 
Tangents drawn at the ends of any focal chord of a parabola ${y^2} = 4ax$ intersect in the line
The number of words from the letters of the word 'BHARAT' in which B and H will never come together, is: