Math, asked by priyanshu200326, 11 months ago

the 1st and last term of an AP is 4 and 81 respectively. if the common difference is 7 fund no of terms are in AP and their sum

Answers

Answered by venkatramanan41223

2

Answer:12

See the image given below

Attachments:

mayankrawal2003: Sn = n/2(a+an)

mayankrawal2003: Sn=12/6(4+81)

mayankrawal2003: Sn= 6 (85)

mayankrawal2003: Sn= 510

Answered by 12harshitab

2

Answer:

Step-by-step explanation:

Attachments:

Previous Question

Next Question

Similar questions

Math, 6 months ago

2. Find the buying price of a soap included 8% sales tax if, price of soap is 45.

English, 6 months ago

describe the network experience through the storm...

Computer Science, 6 months ago

what are the differences between text and 3d text tool? it is urgent please answer fast....

Science, 11 months ago

what is an electrolytic cell also known as...

Math, 11 months ago

Two vertices of a triangle are at (-3,1) and (0,2) and the centroid is at the origin. find its third vertex. class X, Maths, From- Xam Idea. In given Image name the place if you know only...

English, 1 year ago

Alice does not thing she might end up in what place...

English, 1 year ago

Write a short story in about 100 to 150 words using the following hints - Sister returning from abroad -excited-planneda surprise -invited her friends and family-dinner party-she arrived and everyone greeted her sister in tears of joy loved the surprise thanked everyone.

India Languages, 1 year ago

who is the transport minister of india...