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Stasraluca86
a fost răspuns

(-2/5) la a 4 x (30/7) la a 4 x (-7/6) la a 4=​

Răspuns :

(-2/5)⁴ • (30/7)⁴ • (-7/6)⁴ = (2/5)⁴ • (30/7)⁴ • (-7/6)⁴ = (2/5 • 30/7 • 7/6)⁴ = ( 6 • 1/3 )⁴ = 2⁴ = 16