just want to know if I'm correct

lim (x^4)Sin(1/x) / sin^2(X)
x->0

is zero .

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lim x(sqrt(1+4x^2) +2x)
x->-infinity

is -1/4
??


is that right ?

thanks

Yep, they're both correct!

Yes, both are correct. Very good!

** Edit: jcaron2 - you beat me to it!

It means that I got a full answer in the exam ;)))))))))))))))))
Thanksssssssss