A-Level Trig/Other Formulae + Some Physics. Flashcards
1
Q
Sin(2X)
A
2SinXCosX
2
Q
Cos(2X) (1)
A
2Cos^2X - 1
3
Q
Cos(2X) (2)
A
1- 2Sin^2X
4
Q
Cos(2X) (3)
A
Cos^2X - Sin^2X
5
Q
Tan(2X)
A
2TanX / 1-Tan^2X
6
Q
Sin(A+-B)
A
SinACosB +- SinBCosA
7
Q
Cos(A+-B)
A
CosACosB -+ SinASinB (Signs Change)
8
Q
Tan(A+-B)
A
TanA +- TanB / 1 -+TanATanB
9
Q
Cosec^2(X) Integrates to…
A
-Cot(X)
10
Q
Cosec X CotX Integrates to…
A
-CosecX
11
Q
SecXTanX Integrates to…
A
SecX
12
Q
Sec^2X Integrates to…
A
TanX
13
Q
-Cot(X) Differentiates into…
A
Cosec^2(X)
14
Q
-CosecX Differentiates into…
A
Cosec X CotX
15
Q
SecX Differentiates into…
A
SecXTanX
