a to the power minus one plus b to the power minus one  divided by a to the the power minus two minus b to the power minus two

Asked by rairekharai | 9th Dec, 2017, 07:31: PM

Expert Answer:

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

Answered by Sneha shidid | 9th Dec, 2017, 08:39: PM