Home
Class 14
MATHS
Find the sum of the first 12 terms of th...

Find the sum of the first 12 terms of the A.P. -37, -33, -29…….. .

A

-180

B

180

C

810

D

-108

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

Find the sum of the first 10 terms of the A.P. 6,4,2,…..

Find the sum of the first 13 terms of the A.P: -6,\ 0,\ 6,\ 12 ,\ dot

Find the sum of first 100 terms of A.P. 14, 16, 18,……..

Find the sum of the first ten terms of the A.P. whose 4th term is -15 and 9th term is -30

Find the sum of the first 51 terms of the A.P.: whose second term is 2 and fourth term is 8.

The sum of the first five terms of an A.P. and the sum of the first seven terms of the same A.P. is 167. If the sum of first 10 terms of this A.P. is 235, find the sum of its first twenty terms.

The sum of the third and the seventh terms of an A.P. is 32 and their product is 220. Find the sum of the first twenty one terms of the A.P. (The terms of the A.P are in ascending order)

The first term of an A.P. is 5 and the common difference is 4. Complete the following activity and find the sum of first 12 terms of the A.P. Here, a=5, d=4,S_(12)=? S_(n)=(n)/(2)[.............] thereforeS_(12)=(12)/(2)[10+..........] =6xx...............=.............

The sum of the first five terms of an AP and the sum of the first seven terms of the same AP is 167. If the sum first ten terms of this AP is 235, find the sum of its first twenty terms.

The sum oif the first ten terms of an A.P. is equal to 155, and the sum of the first two terms of a G.P. is 9. Find these progressionsif the first term of the A.P. equals the common ratio of the G.P. and the 1st term of G.P. equals the common difference of A.P.