Explicație pas cu pas:
[tex]\bf {3}^{90} =3^{3 \cdot30} = \big(3^3 \big)^{30}= \purple{ \underline{27^{30}}}[/tex]
[tex]\bf 5^{60} =5^{2 \cdot30} = \big(5^2 \big)^{30}= \blue{ \underline{25^{30}}}[/tex]
[tex]\bf 27^{30} > 25^{30} \implies \red{ \underline{3^{90} \: > \:5^{60} }}[/tex]
