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12 Terms
1
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cos²(x)+sin²(x)
1
2
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1+tan²(x)
sec²(x)
3
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1+cot²(x)
csc²(x)
4
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cos(a+b)
cos(a)cos(b)-sin(a)sin(b)
5
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cos(a-b)
cos(a)cos(b)+sin(a)sin(b)
6
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sin(a+b)
sin(a)cos(b)+cos(a)sin(b)
7
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sin(a-b)
sin(a)cos(b)-cos(a)sin(b)
8
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sin(2x)
2sin(x)cos(x)
9
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cos(2x)
cos²(x)-sin²(x)
2cos²(x)-1
1-2sin²(x)
10
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sin(-x)
-sin(x)
11
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cos(-x)
cos(x)
12
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tan(-x)
-tan(x)
Note 
Flashcards (36)