Level 4 Engineering Maths - Transposition of Formulae | UniCourse

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This video looks in depth at Transposition of Formulae, a level 4 maths unit within an edexcel approved course at UniCourse.

[@MrRobertshaw100]

Great tutorial. Just what I needed to jog the grey matter. Thanks. 👍

[@unicourseVideo]

Glad you found it useful, Robert! and good luck with your course!

[@automat3000]

I don't like the 'change the side, change the sign' rule much. Although it works just fine, it doesn't have much logic to it, and I know I learn better when I know why I'm doing what I'm doing what I'm doing, so that I can apply functions easily in multiple areas, rather than just trying to remember a whole load of arbitrary rules for different things. What I'm trying to say (and this doesn't work for everyone), is that it makes more sense to think of an equation as a set of scales, and you should do the same thing to both sides to keep it balanced. So instead of moving the 2 over and changing it's sign, think of it as doing the same to both sides (minus 2 on both sides cancels out the +2, and creates a -2 on the other side).

[@jacknorgrove3725]

Hello, I found this beneficial one thing confused me tho. @13:16 moving 3+c over to the right was a horizontal transposition but at @13:48 moving (a) to the right-hand side was a diagonal transposition. In both cases, the sine was changed. Could you please clarify this point I learned a lot in this video but if I'm wrong about this I probably didn't learn as much as I thought. 😂

[@stevegelec]

I believe 3+c was a diagonal transposition due to it being on the denominator side while on the left side of the = sign. You multiplied by 3+c to move it across. At least I think thats the case.

[@BluesDwoch]

In 3rd example, Mixed example, when (3+c) was moved over to right side of "=" , should'nt it be (8d-4)(-(3+c)) ?

[@CasualInventor]

I was puzzled by that for a bit, it could have been more clearly explained. Here's my understanding... It's actually a diagonal move. Why? Imagine the right hand side is "(8d-4)/1" which changes nothing, but makes it look more balanced to the eye. The (3-c) goes from the lower left to the upper right. Diagonal moves don't need a sign change. Then you can simply throw away the "/1" again. Hope that helps.