Double angle identities MCQs, double angle identities quiz answers to learn math courses online. Double angle identities multiple choice questions (MCQs), double angle identities quiz questions and answers for undergraduate degree. Double angle identities test prep for online certifications.

Practice double angle identities test MCQs: cot(α + β) =, with choices cotαcotβ-1/cotα+cotβ, cotαcotβ+1/cotα-cotβ, cotαcotβ+1/cotα+cotβ, and none of above for undergraduate degree. Practice assessment test for scholarships, online learning double angle identities quiz questions for competitive assessment in math major.

MCQ: Cot(α + β) =

1. cotαcotβ-1/cotα+cotβ
2. cotαcotβ+1/cotα-cotβ
3. cotαcotβ+1/cotα+cotβ
4. None of Above

A

MCQ: 1+cos2α =

1. 2sinα
2. 2cosα
3. 2secα
4. 2cos²α

D

MCQ: Cos(α + β)cos(α - β) =

1. cos²α-sin²β
2. sin²α-cos²β
3. 2cosα
4. 2sinα

B

MCQ: Cosecθ+2cosec2θ/secθ =

1. tanα/2
2. −tanα/2
3. −cotα/2
4. cotα/2

B

MCQ: Cos2α =

1. 1+ tan²α/1 - tan²
2. 2tanα/1 - tan²
3. 1- tan²α/1 + tan²
4. None of Above

C