Can anyone help me with 2 Gilat problems?

g354x17 and g356x25

In g354x17, there is a typo. Instead of finding k, we're supposed to find A. Also the function is supposed to be y=sin(pi*x/15).

Thanks to anyone who helps!

In the mean time I will be trying them until I get them but matlab's difficult :-/

Thanks!

LCuba