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Other Lesson: Trig Identities

Description:   44 trig identity flash cards

Created by: klankeyb
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List Items 
Card # English English Image
1 -cot θ cot(-θ)
2 -csc θ csc(-θ)
3 -sin θ sin(-θ)
4 -tan θ tan(-θ)
5 1 cos2 θ + sin2θ
6 cos 2A cos2A - sin2A
7 cos 2A 2cos2A - 1
8 cos 2A 1- 2sin2A
9 cos x sin(90o-x)
10 cos θ cos(-θ)
11 cos(A+B) cosAcosB - sinAsinB
12 cos(A-B) cosAcosB + sinAsinB
13 cos(A/2) Half-Angle Identity cos(A/2), Half-Angle Identity, Others
14 cosA + cosB Sum-To-Product Indentity cosA + cosB, Sum-To-Product Indentity, Others
15 cosA - cosB Sum-To-Product Indentity cosA - cosB, Sum-To-Product Indentity, Others
16 cosAcosB 1/2[cos(A+B) + cos(A-B)]
17 cosAsinB 1/2[sin(A+B) - sin(A-B)]
18 cot x tan(90o-x)
19 cot θ Reciprocal Identity cot θ, Reciprocal Identity, Others
20 cot θ Quotient Identity cot θ, Quotient Identity, Others
21 csc x sec(90o-x)
22 csc θ Reciprocal Identity csc θ, Reciprocal Identity, Others
23 csc2 θ 1 + cot2 θ
24 sec x csc(90o-x)
25 sec θ Reciprocal Identity sec θ, Reciprocal Identity, Others
26 sec θ sec(-θ)
27 sec2 θ tan2 θ + 1
28 sin 2A 2sinAcosA
29 sin x cos(90o - x)
30 sin(A+B) sinAcosB + cosAsinB
31 sin(A-B) sinAcosB - cosAsinB
32 sin(A/2) Half-Angle Identity sin(A/2), Half-Angle Identity, Others
33 sinA + sinB Sum-To-Product Indentity sinA + sinB, Sum-To-Product Indentity, Others
34 sinA - sinB Sum-To-Product Indentity sinA - sinB, Sum-To-Product Indentity, Others
35 sinAcosB 1/2[sin(A+B) + sin(A-B)]
36 sinAsinB 1/2[cos(A-B) - cos(A+B)]
37 tan 2A Double Angle Idenity tan 2A, Double Angle Idenity, Others
38 tan x cot(90o-x)
39 tan θ Quotient Identity tan θ, Quotient Identity, Others
40 tan(A+B) Sum/Difference tan(A+B), Sum/Difference, Others
41 tan(A-B) Sum/Difference tan(A-B), Sum/Difference, Others
42 tan(A/2) Half-Angle Identity tan(A/2), Half-Angle Identity, Others
43 tan(A/2) Half-Angle Identity tan(A/2), Half-Angle Identity, Others
44 tan(A/2) Half-Angle Identity tan(A/2), Half-Angle Identity, Others

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