Home
Class 12
MATHS
The rth term of a G.P. is (-1)^(r-1).2^(...

The rth term of a G.P. is `(-1)^(r-1).2^(r+1)`, state the value of its 4th term :

A

`2.3^(7)`

B

`2.3^(6)`

C

`2.3^(8)`

D

`2.3^(9)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SEQUENCE AND SERIES

    CHHAYA PUBLICATION|Exercise Exercise 9 C (Very Short Answer Type Questions)|17 Videos

  • SEQUENCE AND SERIES

    CHHAYA PUBLICATION|Exercise Exercise 9 C (Short Answer Type Questions)|43 Videos

  • SEQUENCE AND SERIES

    CHHAYA PUBLICATION|Exercise Exercise 9 B (Long Answer Type Questions)|52 Videos

  • SECOND ORDER DERIVATIVE

    CHHAYA PUBLICATION|Exercise Sample Question for Competitive Examination (Assertion-Reason type)|2 Videos

  • SET THEORY

    CHHAYA PUBLICATION|Exercise Assertion-Reason Type|2 Videos

Similar Questions

Explore conceptually related problems

The rth term of a series is (2r + 1)2^(r ) , find the sum of first n terms of the series.

If the nth term of a G.P. be p, then show that the product of its first (2n-1) terms is p^(2n-1) .

The first term of a G.P. is 1. The sum of the third term and fifth term is 90. Find the common ratio of G.P.

The mth term of a H.P is n and the nth term is m . Proves that its rth term is (mn)/r

If the (p+q)th term of a G.P. is a and (p-q)th term is b, determine its pth term.

If the pth term of an A.P. is q and the qth term is p , then find its rth term.

The pth term of an A.P. is 2p-7, which of the following will be its 4th term ?

The rth terms of an A.P is n and it's nth term is r, show that its mth term is r+n - m.

The 4^(th) term of a G.P. is square of its second term, and the first term is – 3.Determine its 7^(th) term.

Let the sum of the three terms of a G.P. is 14. If 1 is added to the 1st and the 2nd term and 1 is subtracted from the 3rd term, then they will be in A.P. The value of the smallest term is -