Question

a primeira determinação positiva de -25.169° é​

Answer 1

$\mathsf{-25169^{\circ}=69\times(-360)-329^{\circ}}\\\mathsf{360^{\circ}-329^{\circ}=31^{\circ}}$

$\mathsf{\alpha=31^{\circ}+k.360^{\circ},com~k\in\mathbb{Z}}$