# Double Angle Identities Quiz Questions and Answers 155 PDF Download

Learn double angle identities quiz questions, online college math test 155 for distance learning degree, online courses. Colleges and universities courses MCQs on double angle identities quiz, double angle identities multiple choice questions and answers to learn math MCQs with answers. Practice double angle identities MCQs career test assessment on de moivres theorem, online math learning, nature of roots of quadratic equation, operation on three sets, double angle identities practice test for online math problems courses distance learning.

Study bachelor degree and masters degree in math questions, double angle identities online course has multiple choice question (MCQs): cos(α + β)cos(α - β) = with options cos²α-sin²β, sin²α-cos²β, 2cosα and 2sinα for online e-learning for government jobs, highest paying jobs and teaching jobs preparation. Learn double angle identities quiz questions with problem solving skills assessment test.

## Quiz on Double Angle Identities Worksheet 155Quiz PDF Download

Double Angle Identities Quiz

MCQ: Cos(α + β)cos(α - β) =

- cos²α-sin²β
- sin²α-cos²β
- 2cosα
- 2sinα

A

Operation on Three Sets Quiz

MCQ: A ∪ ( B ∩ C ) =

- ( A ∪ C) ∪ ( A ∪ C)
- (B ∩ B) ∩ ( A ∩ C)
- (A ∪ B) ∩ C
- ( A ∪ B ) ∩ (A ∪ C)

D

Nature of roots of quadratic equation Quiz

MCQ: Roots of quadratic equation 2x² - 5x + 3 = 0 are

- equal
- imaginary
- irrational
- real and unequal

D

Online Math Learning Quiz

MCQ: A radian is measure of central angle of an arc of a circle whose length is equal to the

- half of radius of the circle
- diameter of circle
- radius of the circle
- one-third of radius of the circle

C

De Moivres Theorem Quiz

MCQ: For all n belong to Z, ( cosθ + ι sinθ )n

- csc nθ + ι sin nθ
- tannθ +ι cotnθ
- cosnθ + ι sinnθ
- cosnθ - ι sinnθ

C