Home
Class 12
MATHS
If the sum of n terms of an A.P. is 3n^2...

If the sum of n terms of an A.P. is `3n^2+5`and its `m^(t h)`term is 164, find the value of m.

Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    RESONANCE DPP ENGLISH|Exercise All Questions|15 Videos

  • MATRICES

    RESONANCE DPP ENGLISH|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

If the sum of n terms of an A.P. is 3n^2+5n and its mth term is 164, find the value of mdot

of math and n'h term is (2 - 1): (2n - 1).If the sum of n terms of an A.P. is 3n? + 5n and its meh term is 164, find the valueof m... 5 – so als Tildara,Insert five numbers between 8 and 26 such that the resulting sequence is an A.P.

If the sum of n terms of an A.P. is 2n^(2)+5n , then its n^(th) term

The sum of first n terms of an A.P. is 5n^2+3n If its mth term is 168, (i) Find the value of m (ii) Find the 20th term of this AP

If the sum of n terms of an A.P. is 2n^2+3n then write its nth term.

The sum of first m terms of an A.P. is 4m^2-m . If its n t h term is 107, find the value of n . Also, find the 21 s t term of this A.P.

If the sum of first n terms of an A.P. is 3n^2 + 2n , find its r^(th) term.

The sum of first q terms of an A.P. is 63 q-3q^2 . If its p t h term is -60 , find the value of p . Also, find the 11 t h term of this A.P.

The 7t h term of an A.P. is 32 and its 13 t h term is 62. Find the A.P.

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

RESONANCE DPP ENGLISH-JEE MAINS-All Questions
  1. The chance that the vowels are separated in an arrangement of the l...

    Text Solution

    |

  2. The sum of all the values of ' m ' for which the roots x1, x2 of quadr...

    Text Solution

    |

  3. If the sum of n terms of an A.P. is 3n^2+5and its m^(t h)term is 164,...

    Text Solution

    |

  4. Let A be the set of four digit numbers a(1)a(2)a(3)a(4), where a(1) gt...

    Text Solution

    |

  5. The sum of the rational terms in the expansion of (sqrt(2)+ root(5...

    Text Solution

    |

  6. If the sum of the coefficients in the expansion of (2x+3cx+c^(2)x^(2))...

    Text Solution

    |

  7. If 1,z1, z2,ddotz(19) are the 20th roots of unity then (1-z1)(1-z2)(1-...

    Text Solution

    |

  8. If("lim")(xvecoo)(n .3^n)/(n(x-2)^n+n .3^(n+1)-3^n)=1/3, t h e nt h e ...

    Text Solution

    |

  9. If [.] and {.} denote greatest and fractional part functions respectiv...

    Text Solution

    |

  10. Locus of the mid points of the chords of the circle x^2+y^2=a^2 which ...

    Text Solution

    |

  11. A student read common difference of an A.P. as -2 instead of 2 and g...

    Text Solution

    |

  12. If the slope of the curve y=(ax)/(b-x) at the point (1, 1) is 2, then ...

    Text Solution

    |

  13. The area of the figure bounded by right of the line y = x+1 , y = cos ...

    Text Solution

    |

  14. If (-2a,a+1) lies in the interior (smaller region) bounded by the circ...

    Text Solution

    |

  15. How many different words can be formed with the letters of the word...

    Text Solution

    |

  16. Let N be the set of all natural numbers and let R be relation i...

    Text Solution

    |

  17. Let mean of 100 data points be 55 and variance be 16. Now if every d...

    Text Solution

    |

  18. All the 7 digit numbers containing each of the digits 1,2,3,4, 5, 6,7 ...

    Text Solution

    |

  19. If alpha,beta,gamma,delta are four complex numbers such that gamma/del...

    Text Solution

    |

  20. In "^7C7+^8C7+^9C7+^(10)C7+.......+^(20)C7= 1. "^21 C8 2. "^21 ...

    Text Solution

    |