MAT - Paper 2008 - Q1C
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.