Trigonometric Identities Multiple Choice Questions and Answers (MCQs), trigonometric identities quiz answers PDF 1, college math tests to study online certificate courses. Learn triple angle identities MCQs, "Trigonometric Identities" quiz questions and answers for admission and merit scholarships test. Learn triple angle identities, trigonometric identities, online math learning, basic trigonometry formulas, trigonometric ratios of allied angles career test for free online college courses.

"Cos3α =" Multiple Choice Questions (MCQ) on trigonometric identities with choices 4cos³α - 3cosα, 4sinα - 3sin³α, 3cos³α - 4cosα, and 3sinα - 4sin³α for ACT subject test tutoring. Practice jobs' assessment test, online learning triple angle identities quiz questions to learn free online courses.

MCQ: Cos3α =

1. 4sinα - 3sin³α
2. 4cos³α - 3cosα
3. 3cos³α - 4cosα
4. 3sinα - 4sin³α

A

MCQ: Tan(α + β) =

1. tanα-tanβ/1 + tanαtanβ
2. tanα+tanβ/1 - tanαtanβ
3. cotα+cotβ/1-cotαcotβ
4. cotα-cotβ/1 + cotαcotβ

B

MCQ: Cos(-435°) =

1. cos15°
2. −cos15°
3. −sin15°
4. sin15°

D

MCQ: Cosθ + cosπ =

1. −2sin(θ + π/2)sin(θ-π/2)
2. 2cos(θ + π/2)sin(θ-π/2)
3. 2cos(θ + π/2)cos(θ-π/2)
4. None of Above

C

MCQ: If tanθ < 0, sinθ < 0, then the terminal arm of the angle lies in the quadrant

1. 1
2. 2
3. 3
4. 4

A