An informal letter is a personal letter written to someone for a casual or friendly purpose. It typically does not follow a strict format like a formal letter and may include personal anecdotes, informal language, and a more relaxed tone.
It depends on who you are writing to. Most of the times it is a formal.
In a formal writing, yes. In an informal writing, you don't have to.
I do not agree that formal writing has expired, but it is less popular than it used to be. The alternative is informal writing. Informal writing works perfectly well, if you know what you are doing.
The same as it would mean with most any piece of writing. It is asking if the writing is formal or informal.
informal letter, semi-formal letter,formal letter.
No. It is informal shorthand, not acceptable in formal writing.
In Writing Task 1 (IELTS General), there are three types of letters: formal letter. semi-formal letter. informal letter (also known as a personal letter)
Expository writing is a formal writing. It's purpose is to explain, inform, describe, or define what the authors subject.
It is both it starts of as formal but later on it switchis to a more personal level informal
Slang is typically more appropriate for casual writing as it can be considered too informal for formal writing. However, it can be used in moderation for emphasis or to connect with a specific audience in both casual and informal writing styles, depending on the context.
Formal English is the English written in works like essays, where it's a standardized, formal way to write it, but informal English is what I'm writing in right now, a loose, not very structured way of writing.