Home
Class 12
MATHS
If a,b,c in R and a+b+c=0, then the qua...

If `a,b,c in R and a+b+c=0,` then the quadratic equation `3ax^2+2bx+c=0` has (a) at least one root in `[0, 1]` (b) at least one root in `[1,2]` (c) at least one root in `[3/2, 2]` (d) none of these

Promotional Banner

Topper's Solved these Questions

  • 3D COORDINATION SYSTEM

    CENGAGE PUBLICATION|Exercise DPP 3.1|11 Videos
  • APPLICATION OF INTEGRALS

    CENGAGE PUBLICATION|Exercise All Questions|143 Videos

Similar Questions

Explore conceptually related problems

If 2a+3b+6c=0 " "(a, b, c in R) , then the quadratic equation ax^(2)+bx+c=0 has at least one root -

Let a ,b , c in R such that no two of them are equal and satisfy |(2a, b, c),( b, c,2a), (c, 2a, b)|=0, then equation 24 a x^2+8b x+4c=0 has (a) at least one root in [0,1] (b) at least one root in [-1/2,1/2] (c) at least one root in [-1,0] (d) at least two roots in [0,2]

If 2a+3b+6c=0 (a,b,cinR) , then the quadratic equation ax^2+bx+c =0 has

Find the condition if the equation 3x^2+4a x+b=0 has at least one root in (0,1)dot

If 2a+3b+6c=0 , show that the equation ax^(2)+bx+c=0 has at least one root between 0 and 1.

Find the condition for which the quadratic equation ax^2+bx+c=0 has exactly one zero root.

If a,b,c in R : a ne 0 and the quadratic equation ax^2+bx+c =0 has no real root, then show that (a+b+c)c gt 0

If the quadratic equation ax^2+bx+c=0 has -2 as one of its roots, then ax+by+c=0 represents

If 27a+9b+3c+d=0 , then the equation 4ax^3+3bx^2+2cx+d=0 has at least one real root lying between

If alpha,beta are the roots of the quadratic equation ax^2+bx+c=0 and 3b^2=16ac then

CENGAGE PUBLICATION-APPLICATION OF DERIVATIVES-All Questions
  1. The slope of the tangent to a curve y=f(x) at (x,f(x)) is 2x+1. If the...

    Text Solution

    |

  2. Show that the normal at any point theta to the curve x=acostheta+at...

    Text Solution

    |

  3. If a,b,c in R and a+b+c=0, then the quadratic equation 3ax^2+2bx+c=0 ...

    Text Solution

    |

  4. The tangent to the curve y=e^x drawn at the point (c,e^c) intersects t...

    Text Solution

    |

  5. Let S denote the set of all polynomials P(x) of degree lt=2 such tha...

    Text Solution

    |

  6. For the function f(x)=x^4(12(log)e x-7), show that the point (1,7) is...

    Text Solution

    |

  7. Let f(x)=log(2x-x^2)+sin((pix)/2)dot Then which of the following is/ar...

    Text Solution

    |

  8. Find the coordinates of the point on the curve y=x/(1+x^2)where the te...

    Text Solution

    |

  9. Show that 1+x ln(x+sqrt(x^2+1))geqsqrt(1+x^2) for all xgeq0.

    Text Solution

    |

  10. A swimmer S is in the sea at a distance d km from the closest point A ...

    Text Solution

    |

  11. Find the shortest distance of the point (0, c) from the parabola y=...

    Text Solution

    |

  12. If ax^2+b/xgecfor all positive x where agt0andbgtc show that 27ab^2ge4...

    Text Solution

    |

  13. An extremum of the function f(x)=(2-x)/picospi(x+3)+1/(pi^2)sinpi(x+3)...

    Text Solution

    |

  14. If f(x)a n dg(x) are two positive and increasing functions, then which...

    Text Solution

    |

  15. Let f(x)=a(5)x^(5)+a(4)x^(4)+a(3)x^(3)+a(2)x^(2)+a(1)x, "where" a(i),s...

    Text Solution

    |

  16. For the cubic function f(x)=2x^3+9x^2+12 x+1, which one of the followi...

    Text Solution

    |

  17. If f(x)=(sin^2x-1)^("n"),"" then x=pi/2 is a point of local maximum, i...

    Text Solution

    |

  18. Let f(x) be an decreasing function defined on (0,oo). If f(3a^2-4a+1)g...

    Text Solution

    |

  19. In which of the following graphs is x=c the point of inflection?

    Text Solution

    |

  20. L e tf(x)={((x-1)(6x-1))/(2x-1),ifx!=1/2 0,ifx=1/2 Then at x=1/2, whi...

    Text Solution

    |