Final answer:
Formal language is official and academic, while informal language is casual and personal with slang. Jargon is specialized language specific to certain professions or groups.
Explanation:
Formal language is official and academic, used in situations like job applications, legal agreements, and professional settings. It involves full sentences, grammatical correctness, and a more objective tone. Informal language is casual, everyday language with slang and more personal, direct expressions used in conversations. Jargon is specialized language within a particular group or profession that might not be understood by outsiders, often used in technical contexts.
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