\(3\frac { 3 }{ 8 }\) का घनमूल है :(i) \(3\)(ii)�

1.	\(3\frac { 3 }{ 8 }\) का घनमूल है :(i) \(3\)(ii) \(\frac{3}{8}\) (iii) \(1\frac{1}{2}\) (iv) \(\frac{3}{4}\)
Answer» सही विकल्प है (iii) \(1\frac{1}{2}\) \(=3\sqrt{\frac{3}{8}} =3\sqrt{\frac{27}{8}}\) \(=\frac{\sqrt[3]{27}}{\sqrt[3]8}=\frac{\sqrt[3]{3\times3\times3}}{\sqrt[3]{2\times2\times2}}\) \(= \frac{3}{2}=1\frac{1}{2}\)

\(3\frac { 3 }{ 8 }\) का घनमूल है :(i) \(3\)(ii) \(\frac{3}{8}\) (iii) \(1\frac{1}{2}\) (iv) \(\frac{3}{4}\)

Answer»

सही विकल्प है (iii) \(1\frac{1}{2}\)

\(=3\sqrt{\frac{3}{8}} =3\sqrt{\frac{27}{8}}\)

\(=\frac{\sqrt[3]{27}}{\sqrt[3]8}=\frac{\sqrt[3]{3\times3\times3}}{\sqrt[3]{2\times2\times2}}\)

\(= \frac{3}{2}=1\frac{1}{2}\)