a) [1/2^-1+(1/2)^2-2^-3]*2^-1=
[1/2^-1+(1/2)^2-2^-3]*2^-1={2+0,25-1/8}x0,5=2,125x0,5=1,0625
{(1/2)⁻¹+(1/2)²-2⁻³]·2⁻¹ = [(2/1)¹+1²/2²-(1/2)³]·(1/2)¹ = [2+1/4-1/8]·1/2 = [2+2/8-1/8]·1/2 =
2 1/8·1/2 = 17/8·1/2 = 17/16 = 1 1/16
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[1/2^-1+(1/2)^2-2^-3]*2^-1={2+0,25-1/8}x0,5=2,125x0,5=1,0625
{(1/2)⁻¹+(1/2)²-2⁻³]·2⁻¹ = [(2/1)¹+1²/2²-(1/2)³]·(1/2)¹ = [2+1/4-1/8]·1/2 = [2+2/8-1/8]·1/2 =
2 1/8·1/2 = 17/8·1/2 = 17/16 = 1 1/16