Hello, first year at university and a couple of odd looking functions are giving me a headache (Headbang) I have to derivate them so i can the value when x: 0.1,0.2,0.3, but my derivation so far has given me all the wrong answers and not the right ones (Giggle)

Anyone bother to take a look at them please? (Clapping)

Attachment 19729

and the other one:

Attachment 19730

Thanks in advance (Bow)