\(\sqrt[4]{81} - 8 \times \sqrt[3]{216} + 15\sqrt[5]{32} + \sqrt{225}\

1.	\(\sqrt[4]{81} - 8 \times \sqrt[3]{216} + 15\sqrt[5]{32} + \sqrt{225}\) = ......................4√81 - 8 x 3√216 + 15 5√32 + − √225 = ......A) 3B) 2 C) 0 D) 1.........
Answer» Correct option is (C) 0 \(\sqrt[4]{81}-8\times\sqrt[3]{216}+15\sqrt[5]{32}+\sqrt{225}\) \(=(3^4)^\frac14-8\times(6^3)^\frac13+15(2^5)^\frac15+(15^2)^\frac12\) \(=(3)^{4\times\frac14}-8\times(6)^{3\times\frac13}+15(2)^{5\times\frac15}+(15)^{2\times\frac12}\) \(=3-8\times6+15\times2+15\) = 3 - 48 + 30 + 15 = 48 - 48 = 0 Correct option is C) 0

\(\sqrt[4]{81} - 8 \times \sqrt[3]{216} + 15\sqrt[5]{32} + \sqrt{225}\) = ......................4√81 - 8 x 3√216 + 15 5√32 + − √225 = ......A) 3B) 2 C) 0 D) 1.........

Answer»

Correct option is (C) 0

\(\sqrt[4]{81}-8\times\sqrt[3]{216}+15\sqrt[5]{32}+\sqrt{225}\)

\(=(3^4)^\frac14-8\times(6^3)^\frac13+15(2^5)^\frac15+(15^2)^\frac12\)

\(=(3)^{4\times\frac14}-8\times(6)^{3\times\frac13}+15(2)^{5\times\frac15}+(15)^{2\times\frac12}\)

\(=3-8\times6+15\times2+15\)

= 3 - 48 + 30 + 15

= 48 - 48 = 0

Correct option is C) 0