# Complementary Combination Quiz Questions and Answers 124 PDF Download

Learn complementary combination quiz questions, college math online test 124 for distance learning degrees, online college courses. Colleges and universities courses' MCQs on permutations, combinations & probability quiz, complementary combination multiple choice questions and answers to learn math MCQs with answers. Practice complementary combination MCQs, ETS GRE test assessment on online math learning, double angle identities, composition of functions, fourth root of unity, complementary combination practice test for online fun mathematics courses distance learning.

Study complementary combination online courses with multiple choice question (MCQs): value of ^{n-1}c_{r} + ^{n-1}c_{r-1} is, for bachelor degree and masters degree in mathematics questions with choices ^{n+1}c_{r}, ^{n-1}c_{r}, ^{n}c_{r-1}, ^{n+1}c_{r+1} for scholars to prepare for online study guide questions and answers to improve study skills. Learn permutations, combinations & probability quizzes with problem-solving skills assessment test.

## Quiz on Complementary Combination Worksheet 124Quiz PDF Download

Complementary Combination Quiz

MCQ: Value of ^{n-1}C_{r} + ^{n-1}C_{r-1} is

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

B

Fourth Root of Unity Quiz

MCQ: One root of equation x² + 1 = 0 is ι other is

- −ι
- ι²
- −1
- None of Above

B

Composition of functions Quiz

MCQ: If ƒ(x) = √(cot^{-1}x and g(x) = lnx,then (fog)(x) =

- ln(cot
^{-1}x) - 1/2 ln(cot
^{-1}x) - cot
^{-1}(lnx) - √(cot
^{-1}(lnx)

D

Double Angle Identities Quiz

MCQ: Cos2α =

- cos²α - sin²α
- 2sin²α +1
- 2sin²α -1
- 2cos²α +1

A

Online Math Learning Quiz

MCQ: Cos7θ-cosθ =

- 2sin4θsin3θ
- −2sin4θsinθ
- −2sin4θcosθ
- 2sin4θcosθ

B