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Resolve e analisa tudo passo a passo. \" +\n \"ATENÇÃO: Nunca uses formatação LaTeX (como $ ou $$) para equações. Escreve as fórmulas em texto simples legível \" +\n \"usando caracteres normais, frações lineares (ex: C/I = (1/i0) * (3N)^(n/2)) e formatação Markdown para listas.\",\n }],\n },\n // Em vez de \"config\", a API lê \"generationConfig\" na raiz:\n generationConfig: {\n temperature: 0.2,\n },\n };\n\n const res = await fetch(url, {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify(bodyPayload),\n });\n\n const data = await res.json();\n if (!res.ok) {\n console.error(\"Gemini error:\", JSON.stringify(data));\n return \"Desculpa, tive um problema a processar isso. 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