# Combinations Questions and Answers PDF Download eBook - 33

Combinations trivia questions and answers, combinations quiz answers PDF 33 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, fourth root of unity, college math, applied mathematics, notation and value of function, combinations test prep for online college for teaching degree.

"^{n}C_{r} .rι =", combinations Multiple Choice Questions (MCQs) with choices * ^{n}p_{r+1}, ^{n+1}p_{r}, ^{n-1}p_{r}, and ^{n}p_{r}* for online college courses. Practice permutations, combinations and probability questions and answers to improve problem solving skills for accredited online colleges.

## Trivia Quiz on Combinations PDF Download eBook

MCQ: ^{n}C_{r} .rι =

^{n+1}P_{r}^{n}P_{r+1}^{n-1}P_{r}^{n}P_{r}

D

MCQ: If f:x→x² - 2x+1 is a function, then ƒ(t+1) =

- t+1
- t²
- t-1
- t² -1

B

MCQ: If α,β,γ are the angles of a triangle ABC, then sin(α + β) =

- tanγ
- −cosγ
- cosγ
- sinγ

D

MCQ: The system of measurement in which the angle is measured in radians called the

- Circular system
- Sexagesimal system
- MKS system
- CGS system

A

MCQ: The root of equation x^{4} -5x^{4} + 4 = 0 is

- 1
- 3
- 4
- None of Above

A