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Maths Flashcards

1
Q

Math: what is the cosine rule

A

a = sqrt(b2+c2-2bccos(A))

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2
Q

Math: at what angle do a tangent and a radius meet

A

90°

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3
Q

Math: a triangle with multiple angles of 60° is what

A

An equilateral triangle

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4
Q

Math: what is the quadratic formula

A
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5
Q

Math: what is the sine rule

A
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6
Q

Math: what is the cosine rule for angles

A
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6
Q

Maths: when doing circle theorum what should you do to all the radei

A

Label them as symetrical

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7
Q

Maths: what is the symbol for direct proportionality

A

∝

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8
Q

Maths: what is the equation to find direct proportionality

A

y = kx

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9
Q

Math: what is the equation of a line perpendicular to y = 2x + 3

A

y = -1/2x + c

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10
Q

Math: what is an expression

A

It is a mathematical statement containing numbers and variables, 4m + 5

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11
Q

Math: what is an equation

A

It is a statement that equals something, 4m + 5 = 6

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12
Q

Math: equation for a straight line

A

Y=mx+c

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13
Q

Math: what is the area of a trapezium

A
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14
Q

math: what is the volume of a sphere, its surface area?

A
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15
Q

math: if the center of a circle is at the point (0, 0) and the circle intersects the y axis at (0, 6) what is the equation of the circle

A
16
Q

Maths: how to find the turing point with completing the square

A
17
Q

Math: sine rule for area

A
18
Q

Maths: what is the equation of this line

A

y = 1/x

19
Q

Maths: what is the equation of this line

A

y = x^3

20
Q

Math: what is the y intercept of a quadratic curve

A

y = x^2 + bx + c

21
Q

Maths: what type of graph is y = a^x

A

An asymptote

22
Q

Math: what is the equation of exponential graphs

A

y = a x b^x

23
Q

Math: what is truncation

A

To leave out digits past a certain point without rounding

24
Q

Maths:

A
25
Q

Maths:

A
26
Q

Maths: what is it called when a quantity increases by the same percentage repeatedly

A

It is called exponential growth

27
Q

Math: when a quantity decreases by the same percentage repeatedly what is it called

A

Exponential decay

28
Q

Math: what do you do to find the roots of a function

A

f(x) = 0

29
Q

Math: how many digits do you write bearings in

A

3 e.g. 040 degree bearing rather than 40 degree

30
Q

Math: what are the 4 types of transformations

A
  • enlargement
  • reflection
  • rotation
  • translation
31
Q

Math: what is the definition of similar shapes

A

The 2 shapes are proportional

32
Q

Matt: what is the definition of congruent shapes

A

2 shapes are the same (although they can be rotated)

all (25 decks)

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