Trig Rules and Derivatives
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Last updated 12:40 PM on 9/26/22
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15 Terms
1
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Pythagorean identity (cs)
cos^2(x) +sin^2(x) = 1
2
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Double angle identities (sin)
2sin(x)(cos(x)) = sin(2x)
3
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Double angle identities (cos)
cos^2(x) - sin^2(x) = cos(2x)
4
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secant reciprocal
sec(x) = 1/cos(x)
5
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cosecant reciprocal
csc(x) = 1/sin(x)
6
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cotangent reciprocal
cot(x) = 1/tan(x)
7
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Pythagorean identities (st)
1 + tan^2(x) = sec^2(x)
8
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Pythagorean identities (cc)
1 + cot^2(x) = csc^2(x)
9
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Double angle identities (tan)
2tanx/(1-tan^2(x)) = tan(2x)
10
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sine derivative
dy/dx = cos(x)
11
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cosine derivative
dy/dx = -sin(x)
12
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tangent derivative
dy/dx = sec^2(x)
13
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secant derivative
dy/dx = sec(x)tan(x)
14
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cosecant derivative
dy/dx = -csc(x)cot(x)
15
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cotangant derivative
dy/dx = -csc^2(x)
