calc memorization trig
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13 Terms
1
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Sin & cos
Sin²(x) + cos²(x) = 1
2
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Tan + sec
Tan²(x) + 1 = sec²(x)
3
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Cot and csc
1 + cot²(x) = csc²(x)
4
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Cos²(x)
½ * (1 +cos(2x)
5
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Sin²(x)
½ * (1 - cos(2x)
6
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Sin(2x)
2sin(x)cos(x)
7
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Cos(2x)
Cos²(x) - Sin²(x)
8
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D/dx tan^-1(x)
1/(1+x²)
9
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D/dx sin^-1(x)
1/sqrt(1-x²)
10
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D/dx cos(x)
-1/sqrt(1 - x²)
11
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D/dx Cot^-1(x)
-1/(1+x²)
12
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D/dx Sec^-1(x)
1/(abs(x) * sqrt(x² - 1))
13
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D/dx Csc^-1(x)
-1/(abs(x) * sqrt(x² - 1))
Note 
Flashcards (36)