I must plead ignorance. What is the Taylor and Young method of limits?. I even googled it and found nothing. Do you mean using Taylor series?.
Also, what is sen and senh?. I assume perhaps sin and sinh?.
Is this it:
Not exactly, were supose to solve the limit using the usin taylor series and (resto de Young) which i dont know exactly how to translate into english, it would be like the rest of young which sounds dumb. But its basically the error o(x^n). Sorray i dont really know how to explain.
But basically the problem i have with the limit is the answer i dont understand why its one third, what happened to the factorial?