CALC 2 MUST KNOW TRIG IDENTITIES AND INTEGRALS

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23 Terms

1
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1

sin²x + cos²x

2
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1 + tan^2x

sec^2x

3
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1 + cot^2x

csc^2x

4
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sin2x

2sinx cosx

5
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cos(2x)

cos²x − sin²x

6
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sin²x

(1 − cos(2x))/2

7
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cos²x

(1 + cos(2x))/2

8
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tanx

sinx/cosx

9
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cot x

cosx/sinx

10
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secx

1/cosx

11
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csc x

1/sinx

12
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int(x^n) dx

xⁿ⁺¹/(n+1) + C

13
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∫ sin(kx) dx

−(1/k)cos(kx) + C

14
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∫ cos(kx) dx

(1/k)sin(kx) + C

15
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∫ tan(kx) dx

(1/k)ln|sec(kx)| + C

16
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∫ sec(kx) dx

(1/k)ln|sec(kx) + tan(kx)| + C

17
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∫ sec(kx)tan(kx) dx

(1/k)sec(kx) + C

18
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∫ sec²(kx) dx

(1/k)tan(kx) + C

19
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∫ e^{kx} dx

(1/k)e^{kx} + C

20
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∫ 1/x dx

ln|x| + C

21
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∫ 1/(a² + x²) dx

(1/a)tan⁻¹(x/a) + C

22
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∫ 1/√(a² − x²) dx

sin⁻¹(x/a) + C

23
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∫ 1/(x√(x² − a²)) dx

(1/a)sec⁻¹|x/a| + C

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