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10 Cards in this Set
- Front
- Back
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circle formula
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(x-h)^2+(y-k)^2=r^2
Center= (h,k) r= radius |
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Radians to Degrees
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π/x*180º/π
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Degrees to Radians
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xº*π/180º
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When is the inverse trig function used?
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When trying to find an angle by using the sides.
Ex: tanΘ= 18/25 tan^-1(18/25)= Θ |
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sides of a 30-60 right triangle
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1^2+2^2= √(3)^2
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sides of a 45-45 right triangle
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1^2+1^2= √(2)^2
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secΘ=
cscΘ= tanΘ= cotΘ= |
1/cosΘ
1/sinΘ sinΘ/cosΘ cosΘ/sinΘ |
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sin^2Θ+cos^2Θ=
1+tan^2Θ= 1+cot^2Θ= |
1
sec^2Θ csc^2Θ |
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a^3-b^3
a^3+b^3 |
(a-b)(a^2+ab+b^2)
(a+b)(a^2-ab+b^2) |
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1º=
1'= |
60' (1º= 60 seconds)
60" (1 minute= 60 seconds) |
