2⁻[tex] \frac{6}{5} [/tex]*2⁻[tex] \frac{4}{5} [/tex]+49[tex] \frac{1}{2} [/tex]
вычислить

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