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Chapter 5 math

Chapter 5 of Pre cal

Heron's Area formula square root of s(s-a)(s-b)(s-c)S=1/2 (a+b+c)
Area of a triangle(not herons) 1/2(bcsinA)
how to know if there are 2 triangles h<a<b and given angle A and A is acute
law of cosines a squared=b sq.+c sq.-2bcsinA
formula involving tangents 1+tan(sq.)x=sec(sq.)x
formula for cotangents ct(sq.)x+1=csc(sq.)x
which are odd functions cosine&secant
Created by: xoxhil93