Mistakes give rise to Problems- 10

Geometry Level 4

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


But for how many ordered integer pairs (a,b)\color{#3D99F6}{(a,b)}, such that 10a,b10-10\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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