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7 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What do you when it asks you to find the equation of a tangent to curve c at point p? |
Use dy/dx to find the gradient and sub in p’s x coordinate. Then y-y=m(x-x) |
M |
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Finding a range of values for K when there are [x] roots. |
B^2 - 4ac _ 0 Sub equation Solve for K |
Don’t over think it ! |
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Solving inequalities with x^2 |
X^2+ 4 < 0 (X. )(x. )<0 X=. X= |
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Finding dy/dx from first principles. |
Lim. F(x+h) - f(x) h->0. h |
It’s with h and lim |
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Finding stationary points. |
Dy/dx = then state that it =0 Find the x values sub for y values D^2Y/dx^2 Min max |
Points where gradient = 0 |
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Finding and angle on a triangle not right angle. |
Cosine rule rearranged |
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Area of a triangle using an angle |
absin(c) ——— 2 |
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