- #1

nesan

- 75

- 0

## Homework Statement

Sorry, not really a homework question, just practicing for a test online.

Can someone explain how this person simplified this line.

## Homework Equations

A(Ls) = (L - 2*Ls)*Ls*sin(beta) + Ls*sin(beta)*Ls*cos(beta)

becomes

A(Ls) = sin(beta)*[cos(beta) - 2]*Ls^2 + L*sin(beta)*Ls

**INFO**

Lb = L - 2*Ls

h = Ls * sin(beta)

w = Ls * cos(beta)

A = Lb * h + 2 * 1/2 * h * w

Thank you, would be great help. :)