Online College Courses

College Math Certification Exam Tests

College Math Practice Test 137

# Double Angle Identities Quiz Questions and Answers PDF - 137

Books:

Apps:

Free Double Angle Identities Quiz Questions, double angle identities quiz answers PDF download chapter 2-137 to study online math degree courses. Practice Double Angle Identities MCQ with answers PDF, double angle identities Multiple Choice Questions (MCQ Quiz) for online college degrees. Free learning app: Double Angle Identities Quiz App Download & e-Book for double angle identities, trigonometric ratios of allied angles, triple angle identities, nature of roots of quadratic equation, period of trigonometric functions test prep for GRE prep classes.

The Quiz: Cosα-sinα/cosα+sinα; "Double Angle Identities" App Download (Free) with answers sec2α-tan2α, sec2α+tan2α, csc2α-cot2α and csc2α+cot2α to study distance learning courses. Solve double angle identities questions and answers, Amazon eBook to download free sample for best online ACT prep class.

## Double Angle Identities Questions and Answers : Quiz 137

MCQ 681: Cosα-sinα/cosα+sinα

A) sec2α+tan2α
B) sec2α-tan2α
C) csc2α-cot2α
D) csc2α+cot2α

MCQ 682: Tan(-α) =

A) −tanα
B) tanα
C) cotα
D) cotα

MCQ 683: Sin9α =

A) 4cos³3α-3cos3α
B) 3cos³3α-4cos3α
C) 3sin3α-4sin³3α
D) 4sin3α-3sin³3α

MCQ 684: The discriminant of quadratic equation ax² +bx +c = 0 is

A) b² + 4ac
B) 4ac-b²
C) b² - 4ac
D) a² - 4bc

MCQ 685: The period of 3cot(x/3) is

A) π
B) 2π
C) 3π
D) 4π

### Double Angle Identities Learning App & Free Study Apps

Download Double Angle Identities Quiz App to learn Double Angle Identities Quiz, College Math Learning App, and 7th Grade Math Quiz Apps. Free "Double Angle Identities Quiz" App to download Android & iOS Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Double Angle Identities App (Android & iOS)

College Math App (Android & iOS)

7th Grade Math App (Android & iOS)

10th Grade Math App (Android & iOS)