Oblicz .
a) (-3,2)+(-2)5 * (1/2 – 5/8) – (-0,8)
b) [(-1/5)3 : (0,032) – (2½)2 ] – [ (-28) + 52,4 ]
c) – [- (1/2)2 ]2 + [- (-1 ¼)2 ] + (0,1)3
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a)(-3,2)+(-2)5*(1/2-5/8)-(-0,8)=(-3,2)+(-10)*(3/8)-(-0,8)=(-3,2)+(-3,75)-(-0,8)=-6,95+0,8=-6,15
b) [(-1/5)3 : (0,032) – (2½)2 ] – [ (-28) + 52,4 ]=[-0,6:(0,032)-5]-[24,4]=[-18,75-5]-24,4=23,75-24,4=48,15
c) – [- (1/2)2 ]2 + [- (-1 ¼)2 ] + (0,1)3=-[-1]2+[-(-0,25)*2]=2+0,5=2,5
a)(-3,2)+(-2)5*(1/2-5/8)-(-0,8)=(-3,2)+(-10)*(3/8)-(-0,8)=(-3,2)+(-3,75)-(-0,8)=-6,95+0,8=-6,15
b) [(-1/5)3 : (0,032) – (2½)2 ] – [ (-28) + 52,4 ]=[-0,6:(0,032)-5]-[24,4]=[-18,75-5]-24,4=23,75-24,4=48,15
c) – [- (1/2)2 ]2 + [- (-1 ¼)2 ] + (0,1)3=-[-1]2+[-(-0,25)*2]=2+0,5=2,5