Home
Class 10
MATHS
Can 2n^2+ 7 be the nth term of an A.P. ?...

Can `2n^2+ 7` be the nth term of an A.P. ? Explain.

Text Solution

Verified by Experts

The correct Answer is:
No, (the difference between consecutive terms is not the same)
Promotional Banner

Topper's Solved these Questions

  • ARITHMETIC PROGRESSION

    ICSE|Exercise Exercise 10E|5 Videos

  • BANKING

    ICSE|Exercise Competency Based Questions|10 Videos

Similar Questions

Explore conceptually related problems

Question on nth terms in A.P.

If the nth term of the A.P. 58, 60, 62, is equal to the nth term of the A.P. -2, 5, 12………….. find the value of n.

The sum of first n terms of an A.P. is 5n-n^2 . Find the n t h term of this A.P.

Find the second term and nth term of an A.P. whose 6th term is 12 and the 8th term is 22.

If the first and the nth term of a G.P. are a and b, respectively, and if P is the product of n terms , prove that P^(2)=(ab)^(n) .

If the nth term of the A.P. 9,7,5,... is same as the nth term of the A.P. 15,12,9,.. find ndot

If the nth term of an A.P. is (3-7n), find its 10th term.

If the sum of the first n terms of an A.P. is 1/2(3n^2+7n) , then find its nth term. Hence write its 20th term.

ICSE-ARITHMETIC PROGRESSION-Exercise 10F
  1. Find the sum of first 20 terms of an A.P. whose first term is 3 and th...

    Text Solution

    |

  2. How many terms of the series 18 + 15 + 12 +…………... when added together...

    Text Solution

    |

  3. The nth term of a sequence is 8 -5n. Show that the sequence is an A.P.

    Text Solution

    |

  4. Find the general term (nth term) and 23rd term of the sequence 3, 1, -...

    Text Solution

    |

  5. Which term of the sequence 3, 8, 13, is 78?

    Text Solution

    |

  6. Is -150 a term of 11, 8, 5, 2…………

    Text Solution

    |

  7. How many two digit numbers are divisible by 3?

    Text Solution

    |

  8. How many multiples of 4 lie between 10 and 250 ?

    Text Solution

    |

  9. The sum of the 4th term and the 8th term of an A.P is 24 and the sum o...

    Text Solution

    |

  10. The sum of first 14 terms of an AP is 1050 and its 14th terms 140. Fin...

    Text Solution

    |

  11. The 25th term of an A.P. exceeds its 9th term by 16. Find its common d...

    Text Solution

    |

  12. For an A.P., show that (m +n)th term + (m-n) term =2 xx m th term

    Text Solution

    |

  13. If the nth term of the A.P. 58, 60, 62, is equal to the nth term of th...

    Text Solution

    |

  14. Which term of the A.P. 105, 101, 97,………. the first negative term is

    Text Solution

    |

  15. How many three digit numbers are divisible by 7 ?

    Text Solution

    |

  16. Divide 216 into three parts which are in A.P. and the product of two s...

    Text Solution

    |

  17. Can 2n^2+ 7 be the nth term of an A.P. ? Explain.

    Text Solution

    |

  18. Find the sum of the A.P. : 14, 21, 28………….. 168.

    Text Solution

    |

  19. The first term of an A.P. is 20 and the sum of its first seven terms i...

    Text Solution

    |

  20. Find the sum of last 8 terms of the A.P. -12,-10,-8,……..,58.

    Text Solution

    |