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Math - Coggle Diagram
Math
Trigonometry
Pythagoras Therorem: c^2 = a^2 + b^2
Sin rule
angle: sin A/ a = sin B/ b
sides: A/sin a = B/sin b
cosine rule
angle: cos A = (c^2 +b^2 - a^2)/ 2 bc
side: a = c^2 + b^2 - 2(c)(b) cos A
area = 1/2 * bcsin A
RIght angled
sin = O/H
cos = A/H
tan = O/A
Number
Indicies
surds
standard form
rounding
Lower bound
x-(bound/2)
Upper Bound
x + (bound/2)
Algebra
functions
inequalities
Differentiation
dy/dx = nx ^n-1
d/dx (ax^n) = ndx^n-1
Shapes
triangle
volume = 1/2
a
b * h
area = 1/2
b
h
perimeter = S + S + S
SA = 2( a of triangle) + a of base + 2( a of slanted)
cone
SA = πr2 + πrl
volume = 1/3hπr²