Math, asked by sbijusamual, 6 months ago

The algebraic of sum of an arithamatic sequence is n2+2n a)what is the sum of first 10 terms of this sequence? b) how many terms from the first are needed to get the sum 168 ?

Answers

Answered by sam44257

3

Answer:

please mark as brainliest

Step-by-step explanation:

answer

360

24

Previous Question

Next Question

Similar questions

Biology, 3 months ago

INDUS Vally clivilisation had trade relations with_______ Don't Any word i reported your answer ...

Math, 3 months ago

Fraction compare 5 by 2 and 1 by 2...

Math, 3 months ago

if the mean of the following data is 6 find the value of p if x=2 y=3, x=4 y=2, x=6 y=3, x=10 y=1, x=p+5 y=2.

Biology, 6 months ago

mind map of class 8 reaching the age of adolescence...

Science, 6 months ago

What are the different types of teeth...

English, 11 months ago

when he retires next month.He_(work)in this office for 20 years write the sutaible verb for sentence...

Math, 11 months ago

how many minutes in 4678 days...

Science, 11 months ago

A uniform sphere has radius R. A sphere of diameter R is cut from its edge as shown. Then the diste centre of mass of remaining portion from the centre of mass of the original sphere is (1) R7 (2) R/14 (3) 2R/7 (4) R/18...