Google translate helps with translating things.
Answer:
"kaisa dost hu mein Teri?" is Hindi for "What kind of friend am I?"
It's written as this: कैसा दोस्त हुँ में तेरी?
In math, there is no definite definition. But in text slang, it could mean multiple things..
I hope this helped! If so, please mark brainliest!