Uni functions

Special triangle 1 : Angles: 45, 45, 90. Sides: 1, 1, root 2

Special triangle 2 : Angles: 90, 60, 30. Sides:1, 2, root 3

Geometric sequence : The ratio of consecutive terms is a constant; for ex. 2, 10, 50, 250........ has a ratio of 5 that is constant.

Arithmetic series : The sum of the values of the terms of n arithmetic sequence. If the 1st 2 terms are known use: Sn=n/2[2a+(n-1)d]. If first and last term are known use: Sn=n/2(a+tn)

Annuity : Series of equal payments at regular intervals of time.

Reciprocal identities : Cscσ=1/sinσ

Vertex form : y=a(x-h)²+k

Combining transformations : y=af[k(x-d)]+c

Profit/revenue : Profit/revenue=(# of people that attend)×($ per ticket/person)