jika a=243 dan b=125 maka nilai dari a^1/5 - b^1/3 adalah
a = 243
b = 125
[tex] {a}^{ \frac{1}{5} } - {b}^{ \frac{1}{3} } [/tex]
= [tex] {(243)}^{\frac{1}{5} } - {(125)}^{ \frac{1}{3} } [/tex]
= [tex] { ({3}^{5} )}^{ \frac{1}{5} } - { ({5}^{3}) }^{ \frac{1}{3} } [/tex]
= [tex] ({3})^{ \frac{5}{5} } - ({5})^{ \frac{3}{3} } [/tex]
= [tex] {3}^{1} - {5}^{1} [/tex]
= [tex]3 - 5 = - 2[/tex] >>>>>>>> ( B )
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