God i'm retarded, thanks untouchable, really shoulda got that lol.. I did Q.1 a little differently.
Since ab=1, and a+b=-3 therefore a and b are negative. rt(a^2)=-a. a=1/b, and b=1/a.
rt(a^2)+rt(b^2)=(-a)+(-b)=-(a+b)=3. LOL Yours makes mine look tedious. Wouldn't your solution suggest the...