Question

Aratati ca $2^{-1} + 2^{-2} =0,75$

Answer 1

$2^{-1} + 2^{-2} = \frac{1}{2} + \frac{1}{ 2^{2} } = \frac{1}{2} + \frac{1}{4} =0.5+0.25=0.75$

Answer 2

2⁻¹ +2⁻² = 1/2 + 1/2² = 1/2 +1/4=0,5+0,25=0,75