# Double Angle Identities Quiz Questions and Answers 137 PDF Book Download

Double angle identities quiz, double angle identities MCQs with answers, college math test prep 137 to learn online college courses for math degrees. Double angle identities quiz questions and answers, double angle identities multiple choice questions (MCQs) to practice math MCQs with answers for online colleges and universities courses. Learn double angle identities MCQs, nature of roots of quadratic equation, triple angle identities, trigonometric ratios of allied angles, double angle identities test prep for online certifications.

Practice double angle identities test with multiple choice question (MCQs): cosα-sinα/cosα+sinα, with choices sec2α+tan2α, sec2α-tan2α, csc2α-cot2α, and csc2α+cot2α for undergraduate degree. Practice double angle identities questions and answers for problem-solving, merit scholarships assessment test.

## Quiz on Double Angle Identities Worksheet 137Quiz Book Download

Double Angle Identities Quiz

MCQ: Cosα-sinα/cosα+sinα

1. sec2α+tan2α
2. sec2α-tan2α
3. csc2α-cot2α
4. csc2α+cot2α

D

Trigonometric ratios of Allied Angles Quiz

MCQ: Tan(-α) =

1. −tanα
2. tanα
3. cotα
4. cotα

A

Triple Angle Identities Quiz

MCQ: Sin9α =

1. 4cos³3α-3cos3α
2. 3cos³3α-4cos3α
3. 3sin3α-4sin³3α
4. 4sin3α-3sin³3α

C

Nature of roots of quadratic equation Quiz

MCQ: Discriminant of quadratic equation ax² +bx +c = 0 is

1. b² + 4ac
2. 4ac-b²
3. b² - 4ac
4. a² - 4bc

C

Period of Trigonometric Functions Quiz

MCQ: Period of 3cot(x/3) is

1. π

C