Question

ПОМОГИТЕ............

Answer 1

х=0,25⁻¹=(1/4)⁻¹=4

х⁻²=4⁻²=1/16

7·(1/16)/(6-(1/16))   -  7·(1/16)/(6+(1/16))=(7/16)/(95/16)  -  (7/16)/(97/16)=

=(7/95)-(7/97)=7·(97-95)/(95·97) =14/9215