-3/8
или же
-0,375
Объяснение:
2,4:(5,16-(3,4)²)= 12/5÷(129/25-(17/5)²) = 12/5 ÷ 129-25×(17/5)²/25 = 12/5÷129-25×289/25/25=12/5÷129-289/25= 12/5÷ -160/25=12/5×25/-160 = -3×5/40 = -3×1/8 =-3/8
-3/8
или же
-0,375
Объяснение:
2,4:(5,16-(3,4)²)= 12/5÷(129/25-(17/5)²) = 12/5 ÷ 129-25×(17/5)²/25 = 12/5÷129-25×289/25/25=12/5÷129-289/25= 12/5÷ -160/25=12/5×25/-160 = -3×5/40 = -3×1/8 =-3/8