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Combinations trivia questions and answers, combinations quiz answers PDF 54 to practice math exam questions for online classes. Practice "Permutations, Combinations and Probability" trivia questions and answers, combinations Multiple Choice Questions (MCQs) for online college degrees. Free combinations MCQs, arithmetic progression, series in maths, sum of n terms of a geometric series, notation and value of function, combinations test prep for accredited online college courses.

"npr", combinations Multiple Choice Questions (MCQs) with choices (n-r)ι/nι, nι/(n-r)ι, nι/(n+r)ι, and nι/(n-r)ιrι for ACT subject tests. Practice permutations, combinations and probability questions and answers to improve problem solving skills for ACT prep classes.

Combinations Quiz

MCQ: npr

1. nι/(n-r)ι
2. (n-r)ι/nι
3. nι/(n+r)ι
4. nι/(n-r)ιrι

A

Notation and Value of Function Quiz

MCQ: If f:x→(-x)² is a function, then ƒ(2) =

1. −4
2. −2
3. 2
4. 4

D

Sum of n terms of a geometric series Quiz

MCQ: The sum of an infinite geometric series exist only if the condition on the common ratio r is

1. −1 < r < 1
2. −1 ≤ r ≤ 1
3. r < −1,r > 1
4. r ≤ −1,r≥ 1

A

Series in Maths Quiz

MCQ: The sum of the series 1+1/2+1/2² + … is

1. 2
2. ³⁄2
3. 43
4. 109

A

Arithmetic Progression Quiz

MCQ: 1,8,15,22,29,36,… is

1. G.P
2. A.P
3. Geometric series
4. arithmetic series

B