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Practice double angle identities career test with multiple choice question (MCQs): 2cosαcosβ =, with choices cos(α + β)+ cos(α - β), cos(α + β)- cos(α - β), sin(α + β)+ sin(α - β), and sin(α + β)- sin(α - β) for online math degree. Learn trigonometric identities questions and answers for scholarships exams' problem-solving, assessment test.

Double Angle Identities Quiz

MCQ: 2cosαcosβ =

1. cos(α + β)+ cos(α - β)
2. cos(α + β)- cos(α - β)
3. sin(α + β)+ sin(α - β)
4. sin(α + β)- sin(α - β)

A

Parametric Functions Quiz

MCQ: X = asecθ, y = btanθ are parametric equations of

1. circle
2. parabola
3. ellipse
4. hyperbola

D

Double Angle Identities Quiz

MCQ: Cos(α + β)-cos(α - β) =

1. 2sinαcosβ
2. 2cosαsinβ
3. 2cosαcosβ
4. −2sinαsinβ

D

when Q(x) has non-repeated linear factors Quiz

MCQ: X/(x+a)(x-a) =

1. 1/2(x-a) + 1/2(x+a)
2. 1/2(x²-a) + 1/2(x+a)
3. 1/2(x²+a) + 1/2(x-a)
4. None of Above

A

Arithmetic Mean (AM) Quiz

MCQ: A sequence in which any term divided by its immediate previous term gives a constant is called

1. geometric sequences
2. arithmetic sequences
3. real sequence
4. complex sequences

A