Math, asked by yogeshyadav1581997, 11 months ago

the sum of the first n terms of the arithmetical progression 3,11/2,8 is equal to the 2nth term of an Arithmetic progression33/2,57/2,81/2. calculate the value of n.

Answers

Answered by ttenzin17

0

Answer:

a = 3

d = 5/2 as (11/2 - 3) or (8 - 11/2)

sum of first nth terms of A.P

S(n) = n/2 [2a +(n-1)d]

Previous Question

Next Question

Similar questions

Chemistry, 6 months ago

Equal lengths of magnesium ribbon are taken in two test tubes A and B. H2 SO4 is added to test tube A and H2CO3 in test tube B in equal amounts. a) Identify the test tube showing vigorous reaction. b) Give reasons to support your answer. c) Name the gas liberated in both the test tubes. How will you prove its liberation ? d) Write chemical equations for both the reactions? e) Out of the two...

Math, 6 months ago

mahesh bought a set of 4 chairs for 1650. He sold it at a lose of 8% for how much did he sell each?...

Physics, 6 months ago

a 100 N force is used to produce a torque of 40 nm, find the distance of the line of action of the force from the fulcrum...

Science, 11 months ago

write a test for detecting presence of strach in given food item...

Science, 11 months ago

green house gas ve hai jo infride redietion ki avshoshit or utsarjit kar sakte hai nimn likhit me se kon si greenhouse gas nhi hai...

English, 1 year ago

distribute sweets between four girls..correct the sentence...

Chemistry, 1 year ago

CH3 CH2 OH convert CH2 =CH2...

Math, 1 year ago

If Akbar is driving a car at a uniform speed of 40km/hr.Draw the distance time graph.Also find the time taken by Akbar to cover a distance of 200km...