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25 Cards in this Set
- Front
- Back
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sin (π / 6) |
1 / 2 |
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sin (π / 4) |
sqrt(2) / 2 |
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sin (π / 3) |
sqrt(3) / 2 |
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cos (π / 6) |
sqrt(3) / 2 |
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cos (π / 4) |
sqrt(2) / 2 |
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cos (π / 3) |
1 / 2 |
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Law of Sines |
(sinA / a) = (sinB / b) = (sinC / c) |
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Law of Cosines |
c^2 = a^2 + b^2 - 2ab cos C b^2 = a^2 + c^2 - 2ac cos B a^2 = b^2 + c^2 - 2bc cos A |
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polar coordinate |
(r, θ) |
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How to graph a polar coordinate? |
Find θ first and then apply r. |
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polar equation of y |
r sin θ |
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polar equation of x |
r cos θ |
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polar equation of r^2 |
r^2 = x^2 + y^2 |
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polar equation of tan θ |
y / x |
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How to graph a negative r? |
Apply the distance in the opposite direction. |
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In the polar graph of tan θ, if x ≠ 0, when do you add π to θ? |
for points in Quadrant II and III |
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graph of y = a |
horizontal line |
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graph of x = a |
vertical line |
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center-radius form of the circle equation |
(x - h)^2 + (y - k)^2 = r^2, center at (h, k) |
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Completing the Square formula |
x^2 +/- bx + (b / 2)^2 |
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Test for Symmetry with Respect to the Polar Axis |
Replace θ by -θ. |
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Test for Symmetry with Respect to the Line θ =π / 2 |
Replace θ byπ -θ. |
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Test for Symmetry with Respect to the Pole |
Replace r by -r orθ byθ +π. |
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sin(-θ) = ? |
-sin(θ) |
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cos(-θ) = ? |
cos(θ) |
