Core 2 Equations Flashcards
1
Q
1=…
A
Cos^2Ø + sin^2Ø=1
2
Q
TanØ=
A
TanØ=(sinØ/cosØ)
3
Q
Cos(-Ø)=
A
Cos(-Ø)=cosØ
4
Q
sin(-Ø)=
A
-sinØ
5
Q
Tan(-Ø)=
A
-TanØ
6
Q
Sine rule
A
a/sinA=b/sinB=c/sinC
sinA/a=sinB/b=sinC/c
7
Q
Area of a triangle
A
1/2absinC
8
Q
Cosine rule (rearranged)
A
CosC=(a^2+b^2-c^2)/2(ab)
9
Q
a=
A
first value in the sequence
10
Q
In+1=f(Un) is….
A
A reversible defanition of a sequence
11
Q
Triangle number….
A
1/2n(n+1)
12
Q
Factorial
A
n!
1x2x3x…..xn
13
Q
Integrate ax^n
A
{ax^(n+1)}/{n+1}
14
Q
Area between curve and x-axis
A
Untergrate From B to A where x = b and a
15
Q
Area between curve and y axis
A
Untergrate From B to A where y = b and a
