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JEE 2020 Mathematics : Sequence and Series

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Question 1

If the 2nd and 5th terms of a G.P. are 24 and 3 respectively, then the sum of 1st six term is __

Question 2

If a, b, c are in AP, b, c, d are in GP and c, d, e are in HP then a, c, e are in

Question 3

If b is the first term of an infinite G.P. whose sum is 5, then b lies in the interval :

Question 4

Find common ratio if 1st term is 7, last term is and sum is .

Question 5

Find the sum of seriesup to 20 terms.

Question 6

What is the sum of the infinite series?

Question 7

The value of is, (where, a is a constant)

Question 8

The sum of the first n terms of Description: E:\KCET-1-Feb\KARNATAKA-CET-2011_files\image339.png + ….. is
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Jul 20JEE & BITSAT