Home
Class 12
MATHS
The number of values of x where the func...

The number of values of x where the function `f(x)=cosx+cos(sqrt2x)` attains its maximum is

A

0

B

1

C

2

D

Infinite

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • APPLICATION OF DERIVATIVES

    PATHFINDER|Exercise QUESTION BANK|23 Videos

Similar Questions

Explore conceptually related problems

The number of values of x for which f(x)= cos x + cos sqrt(2)x attains its maximum value is-

The minimum value of the function f(x)= sin x + cos x is-

The maximum value of the function f(x)=3 cos x - 4 sin x is-

Prove that function f(x)=cos sqrt(x) is non-periodic.

For what values of x the function y=2sinx+cos2x(0ltxlt2pi) attains the maximum and minimum values?

The maximum value of the function f(x)=5-x-x^(2) is -

For what values of x is the function f(x)=(sinx)/(cosx-sinx) not defined ?

At what points in the interval [0, 2 pi ], does the function sin 2x attain its maximum value?

The domain of the function f(x)=(1)/(sqrt(|cosx|+cosx)) is

Find the real values of x for which the function f(x) = cos^(-1) sqrt(x^(2) + 3 x + 1) + cos^(-1) sqrt(x^(2) + 3x) is defined

PATHFINDER-APPLICATION OF DERIVATIVE-QUESTION BANK
  1. If f(x)=x^alphalogx and f(0)=0, then the value of alpha for which Ro...

    Text Solution

    |

  2. If 0ltxltpi/2,then

    Text Solution

    |

  3. The number of values of x where the function f(x)=cosx+cos(sqrt2x) att...

    Text Solution

    |

  4. The value of a so that the sum of the squares of the roots of the equa...

    Text Solution

    |

  5. The equation e^(x-1)+x-2=0 as

    Text Solution

    |

  6. For the function y=f(x)=(x^2+bx+c)e^x, which of the following holds ?

    Text Solution

    |

  7. The function y=x/(1+x^2) decreases in the interval

    Text Solution

    |

  8. If f(x)=logex is defined in [1,e], then

    Text Solution

    |

  9. The function f(x) =int0^xsqrt(1-t^4)dt is such that

    Text Solution

    |

  10. Let g(x)=2f(x/2)+f(x) and f''(x)lt0 " in "0lexle1, then g(x)

    Text Solution

    |

  11. The critical points of the function f(x)=|x-1|/x^2 are

    Text Solution

    |

  12. The extremum values of the function f(x)-1/(sinx+4)-1/(cosx-4) where x...

    Text Solution

    |

  13. If f(x)=sqrt(8x),g(x)=x+2, then

    Text Solution

    |

  14. Let f(x)={(x+2,-1lexle0),(1,x=0),(x/2,0ltxle1):} Then on [-1,1] this f...

    Text Solution

    |

  15. The points on the curve 9y^(2) = x^(3) , where the normal to the curve...

    Text Solution

    |

  16. The function f(x)= 4x^2+2x+1 is increasing for?

    Text Solution

    |

  17. The function f(x)=x^2(x-2)^2

    Text Solution

    |

  18. If f(x)=|x-2|+|x-4|+|x-6|. Find the set of value of x such that f(x)...

    Text Solution

    |

  19. If f(x)=|x-2|+|x-4|+|x-6|. Find the set of value of x such that f(x)...

    Text Solution

    |

  20. At birth the body weight of a normal baby should be

    Text Solution

    |