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Edexcel Maths C1 key points
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Gravity
Terms in this set (21)
₀ ⁻π∫² ⁿ⁺¹ ₂ ₁ ₊ ₋ ₙ ᵐ ⅟
1
Equation of a line
If gradient and one point is known
Coordinate geometry
y-y₁= m(x-x₁)
Equation of a line
If gradient and intercept is known
Coordinate geometry
y = mx + c
Gradient of a line
Coordinate geometry
m = (y₂-y₁)/(x₂-x₁)
Gradient of the normal
Coordinate geometry
-⅟m
Midpoint of a line
Coordinate geometry
( (x₁ + x₂)/2 , (y₁ + y₂)/2 )
ax² + bx + c = 0 has roots
Algebra and functions
x = (-b±√(b² - 4ac))/(2a)
b² - 4ac > 0
Algebra and functions
2 real roots
b² - 4ac = 0
Algebra and functions
1 real root
b² - 4ac < 0
Algebra and functions
no real roots
Completing the square
x² + bx =
Algebra and functions
(x+(b/2))² - (b/2)²
Difference of two squares
(x-y)(x+y)
≡ x²+y²
√ab
Algebra and functions
(√a)(√b)
√(a/b)
Algebra and functions
√(a/b)
Rationalise denominator of
⅟(a±√b)
Algebra and functions
times by (a∓√b)/(a∓√b)
y = f(x + a)
Algebra and functions
x - a
y = f(x) + a
Algebra and functions
y + a
y = af(x)
Algebra and functions
y • a
y = f(ax)
Algebra and functions
x • ⅟a
terms for series and their meaning?
Sequence and Series
l = last term
a = first term
d = common difference
Gradient of a tangent to a curve
Differentiation
dy/dx
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