Home
Class 12
MATHS
If the Rolle's theorem holds for the fun...

If the Rolle's theorem holds for the function `f(x) = 2x^(3) + ax^(2) + bx` in the interval [-1,1] for the point `c =1/2` , then the value of 2a + b is

A

1

B

`-1`

C

2

D

`-2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MEAN VALUE THEOREMS

    AAKASH SERIES|Exercise EXERCISE|28 Videos

  • MATHEMATICAL REASONING

    AAKASH SERIES|Exercise Practice Exercise|21 Videos

  • MEASURES OF DISPERSION (STATISTICS)

    AAKASH SERIES|Exercise Practice Exercise|54 Videos

Similar Questions

Explore conceptually related problems

Verify Rolle's theorem for the function f(x) = x^2 - 5 x + 6 in the interval [-3,8]

Verify Rolle's theorem for the function y=f(x)=x^2+4 on [-3,3]

Verify Rolle's theorem for the functions f(x)=x(x+3)e^(-x//2) on [-3,0]

Verify Rolle's theorem for the function f(x)=x(x+3)e^(-x/2) in [-3,0].

Verify Rolle's theorem of the function log(x^2+2)-log 3 on (-1,1)

Rolle's theorem holds for the function x^(3) + bx^(2) + cx, 1 le x le2 at the point (4)/(3) , then vaue of b and c are

AAKASH SERIES-MEAN VALUE THEOREMS-EXERCISE
  1. If f(x) = x^(3) + bx^(2) + ax satisfies the conditions of Rolle's the...

    Text Solution

    |

  2. If a + b + c = 0, then the equation 3ax^(2) + 2bx + c = 0 has, in the ...

    Text Solution

    |

  3. If 27a+9b+3c+d=0, then the equation 4ax^(3)+3bx^(2)+2cx+d =0 has atlea...

    Text Solution

    |

  4. Rolle's theorem cannot be applicable for

    Text Solution

    |

  5. The value of 'c' in Lagrange's thorem for f(x) = lx^(2) + mx + n [l ne...

    Text Solution

    |

  6. If f'(x) = (1)/(1+x^(2)) for all x and f(0) = 0, then:

    Text Solution

    |

  7. Let f be a function which is continuous and differentiable for all rea...

    Text Solution

    |

  8. In [0,1], Lagrange's mean value theorem is not applicable to (a) f(...

    Text Solution

    |

  9. Let f(x) and g(x) be differentiable functions for 0 le x le 1 such t...

    Text Solution

    |

  10. The value of 'a' for which x^(3) -3x +a=0 has two distinct roots in [...

    Text Solution

    |

  11. Let R rarr R be a continuous function define by f(x ) =(1)/(e^(x)+2e) ...

    Text Solution

    |

  12. The real number k for which the equation, 2x^(3)+3x+k=0 has two distin...

    Text Solution

    |

  13. If f and 'g' are differentiable functions in [0, 1] satisfying f(0) = ...

    Text Solution

    |

  14. If the Rolle's theorem holds for the function f(x) = 2x^(3) + ax^(2) +...

    Text Solution

    |

  15. Let f(1)= -2 and f'(x ) ge 4.2 for 1 le x le 6 . The possible value o...

    Text Solution

    |

  16. A value of c for which the conclusion of Mean Value Theorem holds for ...

    Text Solution

    |

  17. If 2a + 3b + 6c = 0, then atleast one root of the equation ax^(2) + bx...

    Text Solution

    |

  18. If the equation a(n)x^(n) + a(n-1) x^(n-1)+"......" + a(1) x= 0 (a(1...

    Text Solution

    |

  19. Let f be differentiable for all x. If f(1) = -2 and f'(x) ge 2 for...

    Text Solution

    |

  20. Consider the functions, f(x) = |x -2 | + |x - 5 |, x in R Statement-1...

    Text Solution

    |