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Understanding differentiation from first principle.
What is first principle? Why does it look nothing like the differentiation I had been doing for the past few years?
JH
Answered by Jia Hao L. • Further Mathematics tutor
9906 Views
When does one use the past and imperfect tenses in Italian?
In Italian, the past tense (passato prossimo) is used to indicate events or actions that have happened in the recent past and have been completed.
ED
Answered by Elisa D. • Italian tutor
4628 Views
