1. Algebraic equation manipulation
Squid maths
10/01/08
Algebraic equation manipulation
Make l the subject of the following equation:
Firstly, divide by 2pi (both sides at the same time )
T= 2pi (l/g)^.5
T/2pi=2pi /2pi(l/g)^.5
Then, equal out the square root with a square (same on both sides :))
T/2pi²=(l/g)^.5²
Then, multiply both sides by g.
g(T/2pi)²=(l/g)g
The final sum, I think (following directions, a useful ability.)
g(T/2pi)²=l
l=g(T/2pi)²
Yeah!
Reference: Metcalf P GCSE Maths Exam Practice .pg77 C Collins