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March 29, 2024, 10:14:23 am

Author Topic: Spesh extra formulas and proofs?  (Read 1138 times)  Share 

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YehNahBro

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Spesh extra formulas and proofs?
« on: September 23, 2020, 09:40:30 pm »
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Hi all,
I'm making my bound reference and I was wondering if there are any other useful formulas that may not be in the formula sheet (i.e. SUVAT equations)? Thanks!

S_R_K

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Re: Spesh extra formulas and proofs?
« Reply #1 on: September 24, 2020, 10:17:34 am »
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Vector / scalar resolutes.
Arc / chord length of circles.
Segment / sector area of circles.

There are also other shortcuts which are often useful, like the antiderivative of \(\frac{f'(x)}{f(x)}\) and the partial fraction expansion of \(\frac{1}{a^2 - b^2}\) but in these cases it's probably best to master the standard techniques before trying to memorise a formula.