Mathematics
Subject of the equation [Mathematics]
Note: This tutorial mainly targets O/L & A/L students.
I know, we all know making the subject of (for example) x is a simple thing in a simple equation/sum – which basically anyone should be able to do. What about a hard/confusing one?
This is going to be more than just a tutorial. Let’s make this a quiz. I will do 4 hard questions along with detailed workings. First try it yourself then check the answer(s). Ok? Great!
Questions
1. Make y the subject of this equation.
- P = (a-y) / (b-y)
2. Make W the subject of this equation.
- A = 2(LW + WH + HL)
3. Make ‘t’ the subject of this equation.
- T = a (R+r)(R-r) + t
4. Make v the subject of this equation by finding its value! (Given that f=6 and u=7)
- 1/f = 1/u + 1/v
Answers
(first)
(second)
(third)
(fourth)
- thanks for your comments
Tagged AL, algebra, Math, mathematics, OL
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