College Math Exam Prep

College Math Practice Test 155

The Book *Double Angle Identities Multiple Choice Questions and Answers (MCQs)*, double angle identities quiz answers PDF chapter 2-155 to study online courses, college math tests. Study Double Angle Identities MCQ trivia questions, double angle identities Multiple Choice Questions (MCQ Quiz) for online college degrees. The eBook *Double Angle Identities MCQs* App Download: double angle identities, operation on three sets, nature of roots of quadratic equation, online math learning, de moivres theorem test prep for SAT practice test.

The MCQ: *Cos(α + β)cos(α - β) =* PDF, "Double Angle Identities" App Android & iOS (Free) with sin²α-cos²β, cos²α-sin²β, 2cosα, and 2sinα choices for ACT test. Practice double angle identities questions and answers, Google eBook to download free sample for SAT test.

**MCQ**: Cos(α + β)cos(α - β) =

A) cos²α-sin²β

B) sin²α-cos²β

C) 2cosα

D) 2sinα

a

**MCQ**: A ∪ ( B ∩ C ) =

A) ( A ∪ C) ∪ ( A ∪ C)

B) (B ∩ B) ∩ ( A ∩ C)

C) (A ∪ B) ∩ C

D) ( A ∪ B ) ∩ (A ∪ C)

d

**MCQ**: The roots of the quadratic equation 2x² - 5x + 3 = 0 are

A) equal

B) imaginary

C) irrational

D) real and unequal

d

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

A) half of radius of the circle

B) diameter of circle

C) radius of the circle

D) one-third of radius of the circle

c

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

A) csc nθ + ι sin nθ

B) tannθ +ι cotnθ

C) cosnθ + ι sinnθ

D) cosnθ - ι sinnθ

c

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