Home
Class 12
MATHS
Consider the following statements : 1....

Consider the following statements :
1. If `lim_(xtoa) f(x) and lim_(xtoa) g(x)` both exist, then `lim_(xtoa) {f(x)g(x)}` exists.
2. If `lim_(xtoa) {f(x)g(x)}` exists, then both `lim_(xtoa) f(x) and lim_(xtoa) g(x)` must exist.
Which of the above statements is /are correct?

A

1 only

B

2 only

C

Both 1 and 2

D

Neither 1 nor 2

Text Solution

Verified by Experts

The correct Answer is:
A

If `underset(xtoa)limf(x)andunderset(xtoa)limg(x)` both exists, then
`underset(xtoa)limf(x).g(x)` exists. But if `underset(xtoa)limf(x).g(x)` exists, then
it is not necessary that both `underset(xtoa)limf(x)andunderset(xtoa)limg(x)` exists.
Promotional Banner

Topper's Solved these Questions

  • DIFFERENTIAL EQUATION

    NDA PREVIOUS YEARS|Exercise MCQs|119 Videos
  • HEIGHT & DISTANCE

    NDA PREVIOUS YEARS|Exercise Math|45 Videos

Similar Questions

Explore conceptually related problems

1.if lim_(x rarr a)f(x) and lim_(x rarr a)g(x) both exist,then lim_(x rarr a){f(x)g(x)} exists.2. If lim_(x rarr a){f(x)g(x)} exists,then both lim_(x rarr a)f(x) and lim_(x rarr a)g(x) exist.Which of the above statements is/are correct?

If lim_(x rarr a)[f(x)g(x)] exists,then both lim_(x rarr a)f(x) and lim_(x rarr a)g(x) exist.

If lim_(x rarr a)((f(x))/(g(x))) exists,then

verify the statement true or false.If lim_( x to a ) [f(x) g(x)] exists, then both lim_( x to a ) f(x) and lim_( x to a ) g (x) exist.

If lim_(xtoa)[f(x)+g(x)]=2 and lim_(xtoa) [f(x)-g(x)]=1, then find the value of lim_(xtoa) f(x)g(x).

If lim_( xto 2 ) (f(x) -f(2))/( x-2) exist ,then

If lim_(xtoa)f(x)=1 and lim_(xtoa)g(x)=oo then lim_(xtoa){f(x)}^(g(x))=e^(lim_(xtoa)(f(x)-1)g(x)) lim_(xto0)((x-1+cosx)/x)^(1/x) is equal to

If lim_(x rarr5)f(x)=0 and lim_(x rarr5)g(x)=2, then Lim_(x rarr5)(f(x))/(g(x)) does not exist.

NDA PREVIOUS YEARS-FUNCTIONS, LIMIT, CONTINUITY AND DIFFERENTIABILITY-MCQs
  1. If f(x)={x, when x is rational and 0, when x is irrational g(x)={0, wh...

    Text Solution

    |

  2. Let f(x) be defined as follows : f(x)={{:(2x+1",",-3ltxlt-2),(x-1","...

    Text Solution

    |

  3. Consider the following statements : 1. If lim(xtoa) f(x) and lim(xto...

    Text Solution

    |

  4. Let f(a)=(a-1)/(a+1) Consider the following : 1. f(2a)=f(a)+1 2....

    Text Solution

    |

  5. Suppose the function f(x)=x^(n),n!=0 is differentiable for all x. Then...

    Text Solution

    |

  6. The inverse of the function y=5^(Inx) is

    Text Solution

    |

  7. A function is defined as follows : f(x)={{:(-(x)/(sqrtx^(2))",",xne0...

    Text Solution

    |

  8. Consider the following : 1. x+x^(2) is continuous at x=0 2. x+cos(...

    Text Solution

    |

  9. A function is defined in (0,oo) by f(x)={{:(,1-x^(2)," for ",0ltxle1...

    Text Solution

    |

  10. Consider the following statements : 1. Derivative of f(x) may not ex...

    Text Solution

    |

  11. The function f(x)=|x|-x^(3) is

    Text Solution

    |

  12. If l(1)=(d)/(dx)(e^(sinx)) l(2)lim(hto0) (e^(sin(x+h))-e^(sinx))/(h)...

    Text Solution

    |

  13. If lim(xto(pi)/(2)) (sinx)/(x)=l and lim(xtooo) (cosx)/(x)=m, then whi...

    Text Solution

    |

  14. If x is any real number, then (x^(2))/(1+x^(4)) belongs to which one o...

    Text Solution

    |

  15. The left hand derivative of f(x)=[x]sin(pix) at x = k, k is an intege...

    Text Solution

    |

  16. Indicate all correct alternatives if, f(x) = x/2-1, then on the interv...

    Text Solution

    |

  17. The set of all points where the function f(x)=sqrt(1-e^(-x^2)) is di...

    Text Solution

    |

  18. If f (x) = x (sqrtx+sqrt((x+1)), then

    Text Solution

    |

  19. Which one the following graph represents the function f(x)=(x)/(x),x...

    Text Solution

    |

  20. Let g be the greatest integer function. Then the function f(x)=(g(x))^...

    Text Solution

    |