Home
Class 12
MATHS
If for a non constant A.P. t19=0. Then t...

If for a non constant `A.P. t_19=0`. Then the ratio of `t_49:t_29` is (A) `1:2` (B) `2:3` (C) `3:1` (D) `1:3`

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAIN

    JEE MAINS PREVIOUS YEAR ENGLISH|Exercise MATH|21 Videos

  • LIMITS AND DERIVATIVES

    JEE MAINS PREVIOUS YEAR ENGLISH|Exercise All Questions|5 Videos

Similar Questions

Explore conceptually related problems

If 18 t h and 11 t h term of an A.P. are in the ratio 3\ :2 , then its 21 s t and 5t h terms are in the ratio 3\ :2 (b) 3\ :1 (c) 1\ :3 (d) 2\ :3

If 9t h term of an A.P. is zero, prove that its 29 t h term is double the 19 t h term.

If the angles of ∆ABC are in ratio 1:1:2, respectively (the largest angle being angle C), then the value of s e c A c o s e c B secAcosecB - t a n A c o t B tanAcotB is (a) 0 (b) 1/2 (c) 1 (d) √3/2

If a ,b and c are in A.P. and b-a ,c-b and a are in G.P., then a : b : c is (a). 1:2:3 (b). 1:3:5 (c). 2:3:4 (d). 1:2:4

If the sum of n terms of an A.P., is 3n^2+5n then which of its terms is 164? a. 26 t h b. 27 t h c. 28 t h d. none of these

If the sum of n terms of an A.P., is 3n^2+5n then which of its terms is 164? a. 26 t h b. 27 t h c. 28 t h d. none of these

The coefficient of t^4 in ((1-t^6)/(1-t))^3 (a) 18 (b) 12 (c) 9 (d) 15

The slope of the tangent to the curve x=3t^2+1 , y=t^3-1 at x=1 is (a) 1//2 (b) 0 (c) -2 (d) oo

If T_n =sin^n theta+cos^n theta, then (T_6-T_4)/T_6 =m holds for values of m satisfying (A) m in [-1, 1/3] (B) m in [0, 1/3] (C) m in [-1,0] (D) m in [-1, - 1/2]

In triangle A B C , if sinAcosB=1/4 and 3t a n A=t a n B ,t h e ncot^2A is equal to (a)2 (b) 3 (c) 4 (d) 5.

JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS-All Questions
  1. The integral int(pi//6)^(pi//4)dx/(sin2x(tan^5x+cot^5x))equal

    Text Solution

    |

  2. If the curve C is given by the relation y=x^2 +1. Then the area enclos...

    Text Solution

    |

  3. If for a non constant A.P. t19=0. Then the ratio of t49:t29 is ...

    Text Solution

    |

  4. There are 30 white balls and 10 red balls in bag. 16 balls are drawn w...

    Text Solution

    |

  5. lim(x-gt0) (xcot4x)/((cot^2 2x)(sin^2 x)) is equal to (A) 1 ...

    Text Solution

    |

  6. If int((x+1))/sqrt(2x-1) dx= f(x) sqrt(2x-1)+C. Then f(x) is equal to ...

    Text Solution

    |

  7. Position vector of ponts A, B, C are veca, vecb, vecc respectively whi...

    Text Solution

    |

  8. If x,y is positive real numbers then maximum value of (x^my^m)/((1+x^(...

    Text Solution

    |

  9. Contrapositive of the statement. If the squares of two numbers are equ...

    Text Solution

    |

  10. Set of value of x for which f(x)=sin|x|-|x|+2(x-pi)cos|x| is not diffe...

    Text Solution

    |

  11. Given, sn=1+q+q^2++q^n ,Sn=1+(q+1)/2+((q+1)/2)^2++((q+1)/2)^n ,q!=1 p...

    Text Solution

    |

  12. If f(x)=x/sqrt(a^2+x^2)-((d-x))/sqrt(b^2+(d-x)^2) then (A) f(...

    Text Solution

    |

  13. Given (b+c)/(11) = (c+a)/(12) = (a+b)/(13) for a Delta ABC with usu...

    Text Solution

    |

  14. If Det(A A^T B)=8 and Det(AB^-1)=8, then the value of Det(BB^T A^-1) ...

    Text Solution

    |

  15. If |(a-b-c, 2a, 2a),(2b, b-a-c, 2b),(2c, 2c, c-a-b)|=(a+b+c)(x+a+b+c)^...

    Text Solution

    |

  16. If (x+10)^50+(x−10)^50=a0+a1 x+a2x^2+........a50x^2+...........+a50x^5...

    Text Solution

    |

  17. If |z|+z=3+i, then value of |z| is (A) 5//3 (B) 3//...

    Text Solution

    |

  18. If set A={1, 2, 3, ...,20 }, then the find the number of onto function...

    Text Solution

    |

  19. Two points A(7, 0, 6) and B(3, 4, 2) lie on a plane P1 and Plane P2:2x...

    Text Solution

    |

  20. intcos(logx)dx is equal to (A) x/2(cos(logx)-sin(logx))+c ...

    Text Solution

    |