# Mistakes give rise to Problems- 10

Geometry Level 4

In a fraction, if you cancel out the $\cos$ and the $^\circ$ symbol, like $\dfrac{\cos (a^\circ)}{\cos (b^\circ)}= \dfrac{a}{b}$ then it's a $\color{#D61F06}{\textbf{Big Mistake!!!}}$

But for how many ordered integer pairs $\color{#3D99F6}{(a,b)}$, such that $-10\leq a,b \leq 10$ is the above said "false" property seen to be "true" ?

This problem is the 10th problem of my set Mistakes Give Rise To Problems

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