A-level summary notes for all of trigonometry

-




(x)
sin
A Level
Eg
Trigonometry
tan() -




↑
-

, Blue = Main part
Unit circle : Radian formula :


Pink = Subsection/
Or Arc length Partial Step




-
=
.
Or

Yellow Instruction
:

Sector a



tr(0-sinG) Segment = Area



2 it radians = 360° = Full rotation

1" =
I radian

X

Radians Degrees
Solutions for trigonometric functions :




sinkd = sin (180-c) or sinGc) = (n x)
-




cos(c) = cos (360 x)
-
or coslic) = (2T -(C)

tank) = tan (180 +x) or tanGd = (n + x)

sin(-x) = -


Sin(x)

COS(- (c) = cos(x)

tan(x) =
-tun()