could someone please help
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Originally Posted by ~berserk could someone please help $\displaystyle 3 \sqrt{5} i + \sqrt{5} i = 4 \sqrt{5} i$ ......!
thanks, i kinda dropped the ball on that one but what about the other two?
Originally Posted by ~berserk thanks, i kinda dropped the ball on that one but what about the other two? What about them? Are you trying to do? Simplify? $\displaystyle 3 \sqrt{-11} = 3 \sqrt{11} \, i$. And that's it. $\displaystyle -\sqrt{-\frac{1}{3}} = -\sqrt{\frac{1}{3}}\, i = - \frac{i}{\sqrt3} = - \frac{\sqrt{3} \, i}{3}$.
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