Finding the limits of f(x)

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if f(x)= -[25/(2x+3)] find f(1+h)-f(1)/h lim as h goes to 0

Oct 7th, 2015

Thank you for the opportunity to help you with your question!

f(1+h) = -25/(5+2h)

f(1) = -25/5 = -5 

f(1+h) -f(1) = -25/(5+2h)+5 = [-25+5(5+2h)]/(5+2h)

=10h/(5+2h)  

the limit is 10/(5+2h) =2 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 7th, 2015

Thank you so much! Very helpful!


Oct 7th, 2015

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