Question

-''find the value of x minus 7 by 11 whole to the power minus 3 multiply minus 7 by 11 whole to the power 5 X equal to minus 7 by 11 4 to the power minus 2 whole to the power minus 1 ​

Answer 1

Answer:

Step-by-step explation

begin mathsize 16px style fraction numerator straight a to the power of negative 1 end exponent plus straight b to the power of negative 1 end exponent over denominator straight a to the power of negative 2 end exponent minus straight b to the power of negative 2 end exponent end fraction

fraction numerator begin display style 1 over straight a end style plus begin display style 1 over straight b end style over denominator begin display style 1 over straight a squared end style minus begin display style 1 over straight b squared end style end fraction

fraction numerator begin display style fraction numerator straight a plus straight b over denominator ab end fraction end style over denominator begin display style fraction numerator straight b squared minus straight a squared over denominator straight a squared straight b squared end fraction end style end fraction

fraction numerator straight a plus straight b over denominator ab end fraction cross times fraction numerator straight a squared straight b squared over denominator straight b squared minus straight a squared end fraction

left parenthesis straight a plus straight b right parenthesis cross times fraction numerator ab over denominator open parentheses straight b minus straight a close parentheses open parentheses straight b plus straight a close parentheses end fraction

fraction numerator ab over denominator straight b minus straight a end fraction

end style