CBSE Class 11 Sequences and Series — practice questions
24 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 Sequences and Series in the app →The general solution of $\cos x = 1/2$ is:The 10th term of the AP $3, 7, 11, 15, \ldots$ is:The sum to $n$ terms of a GP with first term $a = 2$ and ratio $r = 3$ is:The sum of the infinite GP $1 + 1/3 + 1/9 + 1/27 + \cdots$ is:The sum $1^2 + 2^2 + 3^2 + \cdots + 10^2$ equals:The individual numbers occurring in a sequence are called its:In the notation for a sequence, the subscript denotes the:The nth term of a sequence is also called the:A sequence with a fixed number of terms is called:A sequence that never ends is described as:The compact notation using the Greek letter for summation is called:The sum of the finite series 1 + 3 + 5 + 7 is:A sequence where each term is a fixed multiple of the last is a:In a geometric progression, the fixed multiplier is called the:The geometric mean of two positive numbers a and b is:The geometric mean of 2 and 8 is:The numbers 2, 4 and 8 are consecutive terms of a:The common ratio of the progression 3, 6, 12, 24 is:The common ratio of the progression 81, 27, 9, 3 is:The next term of the geometric progression 5, 10, 20 is:The arithmetic mean of 4 and 16 is:The geometric mean of 4 and 16 is:If two positive numbers have A.M. 10 and G.M. 8, their sum is:Special series cover natural numbers, their squares and their: