JAMB - Mathematics (1990 - No. 9)
Simplify \(\sqrt{27}\) + \(\frac{3}{\sqrt{3}}\)
4\(\sqrt{3}\)
\(\frac{4}{\sqrt{3}}\)
3\(\sqrt{3}\)
\(\frac{\sqrt{3}}{4}\)
คำอธิบาย
\(\sqrt{27}\) + \(\frac{3}{\sqrt{3}}\)
= \(\sqrt{9 \times 3}\) + \(\frac{3 \times {\sqrt{3}}}{{\sqrt{3}} \times {\sqrt{3}}}\)
= 3\(\sqrt{3}\) + \(\sqrt{3}\)
= 4\(\sqrt{3}\)