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"Cot(α + β) =" Multiple Choice Questions (MCQs) on double angle identities with choices cotαcotβ+1/cotα-cotβ, cotαcotβ-1/cotα+cotβ, cotαcotβ+1/cotα+cotβ, and none of above for best SAT prep courses online. Practice jobs' assessment test, online learning double angle identities quiz questions for best online SAT prep class.

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: 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: 1 + tanαtan2α =

1. −sec2α
2. −cosec2α
3. cosec2α
4. sec2α

D

MCQ: 1 - cosα/sinα =

1. tanα/2
2. −tanα/2
3. −cotα/2
4. None of Above

A