Monday, 6 February 2012

co secant= 1/sin =denominator/numerator 

secant=1/cos =denominator/numerator

cotangent= 1/tan= denominator/numerator

 co secant= 1/sin= hyp/opp

secant=1/cos= hyp/adj

cotangent= 1/tan= hyp/opp

The way I understand it you reverse the positions of the numerator and denominator. It is a different way to right the same ratio.

Friday, 20 January 2012

remeber the basics

same for division
addition and subtraction 
depends on numbers

Quadradic function

Ax^2+bx+c General

A(x-h)^2+k Standard

A(x-x1)(x-x2) Factored

number word conversion for exponential function

 triple=3 base
double=2 base
half=1/2 or .5 base
increase interest 1+% base
decrease interest 1-% base

Wednesday, 18 January 2012

Three things you need to now about log's

The three rules of log's if the base is the same

         ^---if negative then its log(2/7)


third rule 
2xlog (5)=log(5)^2