Question

2⁻$\frac{6}{5}$*2⁻$\frac{4}{5}$+49$\frac{1}{2}$
вычислить

Answer 1

$2 - \frac{6}{5} \times 2 - \frac{4}{5} + 49 \frac{1}{2} = 2 - \frac{12}{5} - \frac{4}{5} + 49 \frac{1}{2} = - \frac{6}{5} + 49 \frac{1}{2} = 48.3$

Answer 2

1) 2^(-6/5) * 2^(-4/5) = 2^(-6/5-4/5 ) =2^ (-10/5) =2^(-2) =1/4

2) 49^ 1/2 = √49 =7

3) 1/4 +7 =7 1/4 =7,25