Math, asked by karunyajey, 1 year ago

if the math term of an AP is 7-3n, find the sum of, 25terms

Answers

Answered by JyotiMaurice200321

2

A1 = 7-3×1 = 4

A2 =7-3×2=1

d= A2-A1

1-4

-3

a25 = a +24d

4-72.

-68

sn n/ 2(a+an)

25/2 (4-68)

25/2(-64)

25× - 32.

-800

Answered by advsanjaychandak

2

Answer:

Step-by-step explanation:

Attachments:

Previous Question

Next Question

Similar questions

Social Sciences, 6 months ago

Sir Muhammed Iqbal, as president of the Muslim league reiterated the importance of separate electorates for the Muslims because ..... sparate (a) He entertained highest regard for the customs , laws, religions of other communities (b) It is an important safeguard for minority political interests. (c) Each group is entitled to free development on its own lines (d) A community which is inspired by...

Math, 6 months ago

solve the linear equation with any method 3x -5y-4=0, 9x-2y-7=0...

Physics, 6 months ago

I) Explain parallax method for measurement of large distances. Also write range of lengths. (II) Find the dimensional formula of (I) pressure (II) momentum (III) Work...

Physics, 1 year ago

what is the importance of REYNOLD NUMBER??.. it's urgent guys...plz...

Math, 1 year ago

Complete the table below the graph with the help of the following graph. 4 -4 1 -1 2 -2 3 -3 -3 -2 -1 0 1 2 3 4 (0,-2) (1,0) (-1,-4) (2,2) A B C D E (3,4) Sr. No. First point Second point Co-ordinates of first point (x1 , y1 ) Co-ordinates of second point (x2 , y2 ) 1 C E (1, 0) (3, 4) 2 A B (-1,-4) (0,-2) 3 B D (0,-2) (2, 2) Write your...

Sociology, 1 year ago

5mins and speech of four pages on Indian politics...

English, 1 year ago

Hii guys!! plz help me first and correct ans will be mark as brainlist...

Math, 1 year ago

if x=-1/2 is zero of p(x) =8x ^3-k find the value of k...