Flashcards
2021-10-10
$$(\cos \theta) x - (\sin \theta) y = 2$$ $$(\sin \theta)x + (\cos \theta)y = 1$$ How could you eliminate one of the variables??
Multiply by $\cos \theta$ or $\sin \theta$.
$$(\cos \theta) x - (\sin \theta) y = 2$$ $$(\sin \theta)x + (\cos \theta)y = 1$$ If asked which values of $\theta$ these equations are solvable for, what does that mean??
What values of $\theta$ the system of equations is consistent for.
$$(\cos \theta) x - (\sin \theta) y = 2$$ $$(\sin \theta)x + (\cos \theta)y = 1$$ What is this in disguise??
A rotation.
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date: 2021-10-10 11:26
summary: how many ways can you solve a funky simultaneous equation?
tags:
- '@?public'
- '@?mat'
- '@?notes'
- '@?maths'
title: MAT - Paper 2008 - Q1C