Download App

Linear Inequalities — Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceMathsLinear Inequalities1 Mark
MCQ
If the equations $\text{x}^2+2\text{x}+3=0 $ and $\text{ax}^2+\text{bx}+\text{c}=0,\text{abc}\in\text{R},$ I have a common root, then $a : b : c$ is.
  • ✓
    $1 : 2 : 3$
  • B
    $3 : 2 : 1$
  • C
    $1 : 3 : 2$
  • D
    $3 : 1 : 2$
✓

Answer

Correct option: A.
$1 : 2 : 3$

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

Explore more

More "M.C.Q (1 Marks)" from Linear Inequalities→Linear Inequalities — all question types→Maths STD 11 Science question papers→CBSE Board STD 11 Science question papers→CBSE Board question paper generator→

Similar questions

If $f(x) = 3x^4 - 5x^2 + 9$, then value of $(x - 1)$ is:
→
The value of $\frac{{{i^{592}} + {i^{590}} + {i^{588}} + {i^{586}} + {i^{584}}}}{{{i^{582}} + {i^{580}} + {i^{578}} + {i^{576}} + {i^{574}}}} - 1 = $
→
A straight line $L$ through the point $(3, - 2)$ is inclined at an angle of $60^o$ to the line $\sqrt 3 x + y = 1$ . If $L$ also intersects the $x-$ axis, then the equation of $L$ is
→
Directions: In the following questions, the Assertions $(A)$ and Reason$(s) (R)$ have been put forward. Read both the statements carefully and choose the correct alternative from the following:
Assertion $(A):$ If $5^{th}$ and $8^{th}$ term of a $\text{GP}$ be $48$ and $384$ respectively, then the common ratio of $\text{GP}$ is $2.$
Reason $(R):$ If $18, x, 14$ are in $AP,$ then $x = 16.$
→
$\mathop {\lim }\limits_{x \to 0} x\log (\sin x) = $
→
If the variance of the following frequency distribution :

Class $10-20$ $20-30$ $30-40$
Frequency $2$ $x$ $2$

 then $x$ is equal to 

→
The equations of the normals to the circle ${x^2} + {y^2} - 8x - 2y + 12 = 0$ at the points whose ordinate is $-1,$ will be
→
The value of $(1+\text{i})(1+\text{i}^2)(1+\text{i}^3)(1+\text{i}^4)$ is
→
For all real values of $\text{x},\cot\text{x}-2\cot\text{}$ is equal to:
→
The equation of a circle with radius $5$ and touching both the coordinate axes is:
→