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Core 2 AS level maths formulae OCR

T W

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C1 - Formulae to learn

Description

OCR Mathematics Core 1

Flashcards by Tech Wilkinson, updated more than 1 year ago

	Created by Tech Wilkinson about 11 years ago

683

(3)

Resource summary

Question	Answer
discriminant	$b^2-4ac$
equation of straight line through $(x_1,y_1)$ with gradient $m$	$y-y_1 = m(x-x_1)$
perpendicular straight lines with gradients $m_1$ and $m_2$	$m_1 m_2 = -1$
equation of circle with centre $(a,b)$ and radius $r$	$(x-a)^2+(y-b)^2=r^2$
differentiation of $y=x^n$	$\frac{dy}{dx}=nx^{n-1}$
differentiation of $y=f(x)+g(x)$	$\frac{dy}{dx}=f'(x)+g'(x)$
Min / Max / Point of inflection (2nd derivative)	$\frac{d^2y}{dx^2} = 0$
Minimum point (2nd derivative)	$\frac{d^2y}{dx^2} > 0$
Maximum point (2nd derivative)	$\frac{d^2y}{dx^2} < 0$

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