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Math - Coggle Diagram
Math
Arithmetic Sequence
d = U2 - U1
U2-U1 = U3-U2
d= U3-U2
(a, x, b): x= (a+ b)/2
Arithmetic Series
Sigma Notation
Sn = n/2 (U1+Un)
Sn = n/2 [2U1 + (n-1)d]
Financial applications
Compound Interest
A = P(1+r/n)^nt)
Simple Interest
Binomial Theorem
nCr
= n!/r!(n-r)!
Pascals triangle
Geometric Sequence
Un = Ur^(n-1)
r = Un/U subscript (n-1)
Geometric Series
Sn = (U1(r^n-1))/r-1
S inf = U1/1-r