5 JEE Main 2017 Sequences and Series previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2017 previous-year questions from the Sequences and Series chapter of Mathematics. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Sequences and Series chapter hub.
If three positive numbers a , b and c are in A.P. such that a b c = 8 , then the minimum possible value of b is:
If the sum of the first n terms of the series 3 +   75 +   243 +   507 + … is 435 3 , then n equal…
If the arithmetic mean of two numbers a and b ,   a > b > 0 , is five times their geometric mean, then a +…
For any three positive real numbers a ,   b and c . If 9 25 a 2 + b 2 + 25 c 2 - 3 a c = 15 b 3 a + c . Then
Let S n = 1 1 3 + 1 + 2 1 3 + 2 3 + 1 + 2 + 3 1 3 + 2 3 + 3 3 + … + 1 + 2 + … , + n 1 3 + 2 3 + … n 3…