... karışık...

https://img809.imageshack.us/img809/...at01082012.jpg

https://img10.imageshack.us/img10/4605/mat01082012.jpg

https://img140.imageshack.us/img140/...at01082012.jpg

https://img839.imageshack.us/img839/...at01082012.jpg

https://img822.imageshack.us/img822/...at01082012.jpg

İlk soruyu şöyle çözdüm;
Türevin limit tanımından;

lim

h→0

f(x+h)-f(x)

h

=

lim

h→0

f(x)+f(h)+xh-f(x)

h

Burada f(x)'ler gider;

lim

h→0

f(h)+xh

h

=

lim

h→0

f(h)

h

+

x

1

Buradan f(h)/h limiti h sıfıra giderken 2 olduğundan cevap 2+1=3 olur.
İyi günler.

2)
https://img818.imageshack.us/img818/...at01082012.jpg

3)
https://img843.imageshack.us/img843/...at01082012.jpg
https://img12.imageshack.us/img12/3121/mat01082012.png

4)
https://img228.imageshack.us/img228/...at01082012.jpg
https://img13.imageshack.us/img13/3121/mat01082012.png

5)
https://img833.imageshack.us/img833/...at01082012.jpg
https://img844.imageshack.us/img844/...t01082012d.png